diff --git a/iguana/iguana777.c b/iguana/iguana777.c
index 7febbfd5d..2e107c8c8 100755
--- a/iguana/iguana777.c
+++ b/iguana/iguana777.c
@@ -361,9 +361,9 @@ int32_t iguana_utxogen(struct iguana_info *coin,int32_t helperid,int32_t convert
 {
     int32_t hdrsi,retval,n,max,incr,num = 0; struct iguana_bundle *bp;
     incr = IGUANA_NUMHELPERS;
-    if ( coin->PREFETCHLAG > 0 )
+    if ( 1 && coin->PREFETCHLAG > 0 )
     {
-        incr /= 2;
+        incr = 1;
         if ( incr < 1 )
             incr = 1;
     }
@@ -382,7 +382,7 @@ int32_t iguana_utxogen(struct iguana_info *coin,int32_t helperid,int32_t convert
         {
             if ( (retval= iguana_spendvectors(coin,bp,&bp->ramchain,0,bp->n,convertflag)) >= 0 )
             {
-                printf("spendvectors retval.%d\n",retval);
+                //printf("spendvectors retval.%d\n",retval);
                 if ( retval > 0 )
                 {
                     printf("GENERATED UTXO.%d for ht.%d duration %d seconds\n",bp->hdrsi,bp->bundleheight,(uint32_t)time(NULL) - bp->startutxo);
diff --git a/iguana/iguana777.h b/iguana/iguana777.h
index 6b9ca76a3..b70161196 100755
--- a/iguana/iguana777.h
+++ b/iguana/iguana777.h
@@ -477,7 +477,7 @@ struct iguana_info
     struct iguana_peers peers; struct iguana_peer internaladdr;
     uint64_t instance_nonce,myservices,totalsize,totalrecv,totalpackets,sleeptime;
     int64_t mining,totalfees,TMPallocated,MAXRECVCACHE,MAXMEM,PREFETCHLAG,estsize,activebundles;
-    int32_t MAXPEERS,MAXPENDINGREQUESTS,MAXBUNDLES,MAXSTUCKTIME,active,closestbundle,numemitted,lastsweep,numemit,startutc,newramchain,numcached,cachefreed,helperdepth,startPEND,endPEND,enableCACHE,RELAYNODE,VALIDATENODE,origbalanceswritten,balanceswritten,RTheight;
+    int32_t MAXPEERS,MAXPENDINGREQUESTS,MAXBUNDLES,MAXSTUCKTIME,active,closestbundle,numemitted,lastsweep,numemit,startutc,newramchain,numcached,cachefreed,helperdepth,startPEND,endPEND,enableCACHE,RELAYNODE,VALIDATENODE,origbalanceswritten,balanceswritten,RTheight,RTdatabad;
     bits256 balancehash,allbundles;
     uint32_t lastsync,parsetime,numiAddrs,lastpossible,bundlescount,savedblocks,backlog,spendvectorsaved,laststats; char VALIDATEDIR[512];
     int32_t longestchain,badlongestchain,longestchain_strange,RTramchain_busy,emitbusy,stuckiters;
diff --git a/iguana/iguana_blocks.c b/iguana/iguana_blocks.c
index 42d84efdf..e331b703a 100755
--- a/iguana/iguana_blocks.c
+++ b/iguana/iguana_blocks.c
@@ -527,6 +527,8 @@ struct iguana_block *_iguana_chainlink(struct iguana_info *coin,struct iguana_bl
                             {
                                 char str[65],str2[65];
                                 printf("ERROR: need to fix up bundle for height.%d (%p %p) (%s %s)\n",block->height,block,bp->blocks[block->height % coin->chain->bundlesize],bits256_str(str,block->RO.hash2),bits256_str(str2,bp->hashes[block->height % coin->chain->bundlesize]));
+                                if ( bp == coin->current && coin->RTheight > 0 )
+                                    coin->RTdatabad = 1;
                                 //iguana_bundleremove(coin,bp->hdrsi,0);
                                 //exit(-1);
                                 //getchar();
diff --git a/iguana/iguana_bundles.c b/iguana/iguana_bundles.c
index 01525bcc7..cec987d03 100755
--- a/iguana/iguana_bundles.c
+++ b/iguana/iguana_bundles.c
@@ -751,11 +751,17 @@ int32_t iguana_bundleready(struct iguana_info *coin,struct iguana_bundle *bp,int
                 }
                 else
 #endif
+                {
                     iguana_blockunmark(coin,block,bp,i,1);
+                    if ( requiredflag != 0 )
+                        printf("not ready altpath.(%d %d %d %d %d) [%d:%d]\n",block->txvalid == 0,block->fpipbits == 0 ,block->fpos < 0,(bp->bundleheight+i > 0 && bits256_nonz(block->RO.prev_block) == 0),iguana_blockvalidate(coin,&valid,block,1) < 0,bp->hdrsi,i);
+                }
             }
         }
         else
         {
+            if ( requiredflag != 0 )
+                printf("no block at [%d:%d]\n",bp->hdrsi,i);
             iguana_blockunmark(coin,block,bp,i,0);
             if ( bp->queued != 0 )
             {
@@ -945,7 +951,7 @@ int32_t iguana_bundlefinalize(struct iguana_info *coin,struct iguana_bundle *bp,
             }
             else
             {
-                fprintf(stderr,"emitQ done coin.%p bp.[%d] ht.%d error\n",coin,bp->hdrsi,bp->bundleheight);
+                //fprintf(stderr,"emitQ done coin.%p bp.[%d] ht.%d error\n",coin,bp->hdrsi,bp->bundleheight);
                 bp->emitfinish = 0;
             }
             coin->emitbusy--;
@@ -994,7 +1000,7 @@ int32_t iguana_bundleiters(struct iguana_info *coin,struct OS_memspace *mem,stru
     {
         if ( iguana_bundlefinalize(coin,bp,mem,memB) > 0 )
             return(0);
-        else printf("bundlefinalize not done.[%d]\n",bp->hdrsi);
+        //else printf("bundlefinalize not done.[%d]\n",bp->hdrsi);
         retval = 1;
     }
     else if ( bp->hdrsi == starti || (bp->hdrsi >= starti && bp->hdrsi <= starti+range) )
diff --git a/iguana/iguana_init.c b/iguana/iguana_init.c
index 4f4494945..04f72b8d0 100755
--- a/iguana/iguana_init.c
+++ b/iguana/iguana_init.c
@@ -207,11 +207,12 @@ int32_t iguana_bundleinitmap(struct iguana_info *coin,struct iguana_bundle *bp,i
         coin->current = coin->bundles[0] = bp;
     if ( (block= iguana_blockfind("parse",coin,hash2)) != 0 )
         block->mainchain = 1, block->height = height;
-    bp->emitfinish = (uint32_t)time(NULL) + 1;
     if ( iguana_bundleload(coin,&bp->ramchain,bp,2) != 0 )
     {
         if ( coin->current != 0 && coin->current->hdrsi+1 == bp->hdrsi )
             coin->current = bp;
+        bp->emitfinish = (uint32_t)time(NULL) + 1;
+        //printf("[%d %u] ",bp->hdrsi,bp->emitfinish);
         return(0);
     }
     else
@@ -222,6 +223,7 @@ int32_t iguana_bundleinitmap(struct iguana_info *coin,struct iguana_bundle *bp,i
         //printf("init reqhdrs.%d\n",bp->bundleheight);
         queue_enqueue("hdrsQ",&coin->hdrsQ,queueitem(str),1);
         memset(&hash2,0,sizeof(hash2));
+        bp->emitfinish = 0;
         return(-1);
     }
 }
@@ -328,7 +330,7 @@ void iguana_parseline(struct iguana_info *coin,int32_t iter,FILE *fp)
                                 printf("mismatched allhash.[%d]\n",bp->hdrsi);
                                 bp->allhash = allhash;
                             }
-                            if ( height > lastheight )
+                            if ( height >= lastheight )
                             {
                                 if ( iguana_bundleinitmap(coin,bp,height,hash2,hash1) == 0 )
                                     lastbundle = hash2, lastheight = height;
diff --git a/iguana/iguana_ramchain.c b/iguana/iguana_ramchain.c
index a364ed5c8..65081b1cf 100755
--- a/iguana/iguana_ramchain.c
+++ b/iguana/iguana_ramchain.c
@@ -629,7 +629,7 @@ void *_iguana_ramchain_setptrs(RAMCHAIN_PTRPS,struct iguana_ramchaindata *rdata)
 
 void *iguana_ramchain_offset(char *fname,void *dest,uint8_t *lhash,FILE *fp,uint64_t fpos,void *srcptr,uint64_t *offsetp,uint64_t len,uint64_t srcsize)
 {
-    long err;
+    long err,startfpos;
     void *destptr = (void *)(long)((long)dest + *offsetp);
     if ( (lhash != 0 || fp != 0) && (*offsetp + len) > srcsize )
     {
@@ -643,15 +643,18 @@ void *iguana_ramchain_offset(char *fname,void *dest,uint8_t *lhash,FILE *fp,uint
     }
     else if ( fp != 0 )
     {
+        startfpos = ftell(fp);
         if ( (err= fwrite(srcptr,1,len,fp)) != len )
         {
             printf("iguana_ramchain_offset.(%s): error.%ld writing len.%ld to fp.%p errno.%d\n",fname,err,(long)len,fp,errno);
             printf("probably out of disk space. please free up space\n");
             fprintf(stderr,"iguana_ramchain_sizefunc.(%s): error.%ld writing len.%ld to fp.%p errno.%d\n",fname,err,(long)len,fp,errno);
             fprintf(stderr,"probably out of disk space. please free up space\n");
-            fseek(fp,0,SEEK_SET);
-            len = 0;
-            fpos = 0;
+            sleep(1);
+            fseek(fp,startfpos,SEEK_SET);
+            if ( (err= fwrite(srcptr,1,len,fp)) == len )
+                printf("second write worked!\n");
+            else fpos = len = 0;
         }
         //else printf("fp.(%ld <- %d) ",ftell(fp),(int32_t)len);
     }
@@ -1018,8 +1021,8 @@ long iguana_ramchain_save(struct iguana_info *coin,RAMCHAIN_FUNC,uint32_t ipbits
         }
     }*/
 #ifdef __PNACL__
-    static portable_mutex_t mutex;
-    portable_mutex_lock(&mutex);
+    //static portable_mutex_t mutex;
+    //portable_mutex_lock(&mutex);
 #endif
     if ( (fp= fopen(fname,"wb")) == 0 )
         printf("iguana_ramchain_save: couldnt create.(%s) errno.%d\n",fname,errno);
@@ -1042,7 +1045,7 @@ long iguana_ramchain_save(struct iguana_info *coin,RAMCHAIN_FUNC,uint32_t ipbits
         fclose(fp);
     }
 #ifdef __PNACL__
-    portable_mutex_unlock(&mutex);
+    //portable_mutex_unlock(&mutex);
 #endif
    return(fpos);
 }
@@ -1252,7 +1255,7 @@ int32_t iguana_bundleremove(struct iguana_info *coin,int32_t hdrsi,int32_t tmpfi
     struct iguana_bundle *bp; int32_t i; char fname[1024],str[65];
     if ( hdrsi >= 0 && hdrsi < coin->bundlescount && (bp= coin->bundles[hdrsi]) != 0 )
     {
-        //printf("delete bundle.[%d]\n",hdrsi);
+        printf("delete bundle.[%d]\n",hdrsi);
         if ( tmpfiles != 0 )
         {
             for (i=0; i<bp->n; i++)
@@ -2002,7 +2005,7 @@ void iguana_blockunmark(struct iguana_info *coin,struct iguana_block *block,stru
         fname[0] = 0;
         if ( block != 0 && (checki= iguana_peerfname(coin,&hdrsi,GLOBAL_TMPDIR,fname,0,block->RO.hash2,zero,1,1)) != i )
         {
-            printf("checki.%d vs %d mismatch? %s\n",checki,i,fname);
+            //printf("checki.%d vs %d mismatch? %s\n",checki,i,fname);
         }
         if ( fname[0] != 0 )
             OS_removefile(fname,0);
@@ -2263,7 +2266,8 @@ struct iguana_ramchain *iguana_bundleload(struct iguana_info *coin,struct iguana
     {
         //printf("couldnt load bundle.%d\n",bp->bundleheight);
         memset(&bp->ramchain,0,sizeof(bp->ramchain));
-        iguana_bundleremove(coin,bp->hdrsi,0);
+        bp->emitfinish = 0;
+        //iguana_bundleremove(coin,bp->hdrsi,0);
     }
     if ( mapchain != 0 )
         coin->newramchain++;
diff --git a/iguana/iguana_unspents.c b/iguana/iguana_unspents.c
index f1865b8b0..46865ba99 100755
--- a/iguana/iguana_unspents.c
+++ b/iguana/iguana_unspents.c
@@ -307,8 +307,13 @@ int32_t iguana_volatileupdate(struct iguana_info *coin,int32_t incremental,struc
             }
         }
         printf("iguana_volatileupdate.%d: [%d] spent.(u%u %.8f pkind.%d) double spend? at ht.%d [%d] spendind.%d\n",incremental,spent_hdrsi,spent_unspentind,dstr(spent_value),spent_pkind,fromheight,fromheight/coin->chain->bundlesize,spendind);
-        iguana_bundleremove(coin,spent_hdrsi,0);
-        iguana_bundleremove(coin,fromheight/coin->chain->bundlesize,0);
+        if ( coin->current != 0 && coin->current->hdrsi == fromheight/coin->chain->bundlesize )
+            coin->RTdatabad = 1;
+        else
+        {
+            iguana_bundleremove(coin,spent_hdrsi,0);
+            iguana_bundleremove(coin,fromheight/coin->chain->bundlesize,0);
+        }
         exit(-1);
     }
     return(-1);
@@ -947,7 +952,7 @@ int32_t iguana_spendvectors(struct iguana_info *coin,struct iguana_bundle *bp,st
     ptr = mycalloc('x',sizeof(*ptr),n);
     total += n;
     startmillis = OS_milliseconds();
-    //if ( 0 && strcmp(coin->symbol,"BTC") == 0 )
+    if ( 0 && strcmp(coin->symbol,"BTC") == 0 )
         printf("start UTXOGEN.%d max.%d ptr.%p millis.%.3f\n",bp->bundleheight,n,ptr,startmillis);
     starttime = (uint32_t)time(NULL);
     txidind = B[starti].firsttxidind;
@@ -1241,7 +1246,7 @@ int32_t iguana_volatilesinit(struct iguana_info *coin)
     printf("volatile init\n");
     for (i=0; i<coin->balanceswritten; i++)
     {
-        if ( (bp= coin->bundles[i]) == 0 || bp->emitfinish <= 1 || bp->utxofinish <= 1 )
+        if ( (bp= coin->bundles[i]) == 0 || bp->emitfinish <= 1 || (i > 0 && bp->utxofinish <= 1) )
         {
             printf("hdrsi.[%d] emitfinish.%u utxofinish.%u\n",i,bp->emitfinish,bp->utxofinish);
             break;
@@ -1341,21 +1346,21 @@ void iguana_initfinal(struct iguana_info *coin,bits256 lastbundle)
         printf("req lastbundle.(%s)\n",hashstr);
         queue_enqueue("hdrsQ",&coin->hdrsQ,queueitem(hashstr),1);
     }
-    for (i=1; i<coin->bundlescount-1; i++)
+    for (i=0; i<coin->bundlescount-1; i++)
     {
-        if ( (bp= coin->bundles[i]) == 0 || bp->utxofinish <= 1 )
+        if ( (bp= coin->bundles[i]) == 0 || bp->emitfinish <= 1 )
         {
-            printf("initfinal break.[%d]: bp.%p or utxofinish.%u\n",i,bp,bp!=0?bp->utxofinish:-1);
+            printf("initfinal break.[%d]: bp.%p or emit.%u utxofinish.%u\n",i,bp,bp!=0?bp->emitfinish:-1,bp!=0?bp->utxofinish:-1);
             break;
         }
     }
     if ( i < coin->bundlescount-1 )
     {
-        //printf("spendvectors.[%d] missing, will regen all of them\n",i);
+        //printf("spendvectors.[%d] max.%d missing, will regen all of them\n",i,coin->bundlescount-1);
         for (i=0; i<coin->bundlescount-1; i++)
         {
-            if ( coin->bundles[i] != 0 )
-                coin->bundles[i]->startutxo = coin->bundles[i]->utxofinish = 0;
+            if ( (bp= coin->bundles[i]) != 0 )
+                bp->startutxo = bp->utxofinish = 0;
         }
     }
     printf("i.%d bundlescount.%d\n",i,coin->bundlescount);
@@ -1671,6 +1676,7 @@ void iguana_RTramchainfree(struct iguana_info *coin)
     iguana_ramchain_free(coin,&coin->RTramchain,1);
     iguana_mempurge(&coin->RTmem);
     iguana_mempurge(&coin->RThashmem);
+    coin->RTdatabad = 0;
 }
 
 void *iguana_ramchainfile(struct iguana_info *coin,struct iguana_ramchain *dest,struct iguana_ramchain *R,struct iguana_bundle *bp,int32_t bundlei,struct iguana_block *block)
@@ -1742,7 +1748,7 @@ void iguana_rdataset(struct iguana_ramchain *dest,struct iguana_ramchaindata *rd
     rdest->numtxids = src->H.txidind;
     rdest->numunspents = src->H.unspentind;
     rdest->numspends = src->H.spendind;
-    printf("RT set numtxids.%u numspends.%u\n",rdest->numtxids,rdest->numspends);
+    //printf("RT set numtxids.%u numspends.%u\n",rdest->numtxids,rdest->numspends);
 }
 
 void iguana_rdatarestore(struct iguana_ramchain *dest,struct iguana_ramchaindata *rdest,struct iguana_ramchain *src)
@@ -1794,7 +1800,7 @@ void iguana_RTspendvectors(struct iguana_info *coin,struct iguana_bundle *bp)
         //printf("spendvectors converted to %d\n",coin->RTheight);
         bp->converted = (uint32_t)time(NULL);
         iguana_balancegen(coin,0,bp,coin->RTstarti,coin->RTheight-1,orignumemit);
-        printf("iguana_balancegen [%d] (%d to %d)\n",bp->hdrsi,coin->RTstarti,(coin->RTheight-1)%bp->n);
+        //printf("iguana_balancegen [%d] (%d to %d)\n",bp->hdrsi,coin->RTstarti,(coin->RTheight-1)%bp->n);
         coin->RTstarti = (coin->RTheight % bp->n);
     }
 }
@@ -1804,6 +1810,8 @@ int32_t iguana_realtime_update(struct iguana_info *coin)
     double startmillis0; static double totalmillis0; static int32_t num0;
     struct iguana_bundle *bp; struct iguana_ramchaindata *rdata; int32_t bundlei,i,n,flag=0; bits256 hash2; struct iguana_peer *addr;
     struct iguana_block *block=0; struct iguana_blockRO *B; struct iguana_ramchain *dest=0,blockR;
+    if ( coin->RTdatabad != 0 )
+        iguana_RTramchainfree(coin);
     if ( (bp= coin->current) != 0 && bp->hdrsi == coin->longestchain/coin->chain->bundlesize && bp->hdrsi == coin->balanceswritten && coin->RTheight >= bp->bundleheight && coin->RTheight < bp->bundleheight+bp->n && ((coin->RTheight <= coin->blocks.hwmchain.height && time(NULL) > bp->lastRT) || time(NULL) > bp->lastRT+10) )
     {
         if ( (block= bp->blocks[0]) == 0 || block->txvalid == 0 || block->mainchain == 0 )
@@ -1896,7 +1904,7 @@ int32_t iguana_realtime_update(struct iguana_info *coin)
         printf("ramchainiterate.[%d] ave %.2f micros, total %.2f seconds starti.%d num.%d\n",num0,(totalmillis0*1000.)/num0,totalmillis0/1000.,coin->RTstarti,coin->RTheight%bp->n);
         if ( (n= iguana_walkchain(coin,1)) == coin->RTheight-1 )
         {
-            printf("RTgenesis verified\n");
+            //printf("RTgenesis verified\n");
             coin->RTgenesis = (uint32_t)time(NULL);
             iguana_RTspendvectors(coin,bp);
         }
@@ -1909,6 +1917,8 @@ int32_t iguana_realtime_update(struct iguana_info *coin)
     }
     if ( dest != 0 && flag != 0 )
         printf("<<<< flag.%d RT.%d:%d hwm.%d L.%d T.%d U.%d S.%d P.%d X.%d -> size.%ld\n",flag,coin->RTheight,n,coin->blocks.hwmchain.height,coin->longestchain,dest->H.txidind,dest->H.unspentind,dest->H.spendind,dest->pkind,dest->externalind,dest->H.data!=0?(long)dest->H.data->allocsize:-1);
+    if ( coin->RTdatabad != 0 )
+        iguana_RTramchainfree(coin);
     return(flag);
 }
 
diff --git a/iguana/main.c b/iguana/main.c
index 718265ba3..dd41484ed 100755
--- a/iguana/main.c
+++ b/iguana/main.c
@@ -68,12 +68,12 @@ int32_t HDRnet,netBLOCKS;
 cJSON *API_json;
 
 #ifdef __PNACL__
-char GLOBAL_TMPDIR[512] = "/tmp";
+char GLOBAL_TMPDIR[512] = "/DB/tmp";
 char GLOBAL_DBDIR[512] = "/DB";
 char GLOBAL_HELPDIR[512] = "/DB/help";
 char GLOBAL_VALIDATEDIR[512] = "/DB/purgeable";
 char GLOBAL_CONFSDIR[512] = "/DB/confs";
-int32_t IGUANA_NUMHELPERS = 1;
+int32_t IGUANA_NUMHELPERS = 4;
 #else
 char GLOBAL_TMPDIR[512] = "tmp";
 char GLOBAL_HELPDIR[512] = "help";
@@ -1321,7 +1321,7 @@ void iguana_main(void *arg)
     iguana_helpinit(myinfo);
     iguana_commandline(myinfo,arg);
 #ifdef __APPLE__
-    //iguana_appletests(myinfo);
+    iguana_appletests(myinfo);
 #endif
     iguana_launchdaemons(myinfo);
 }