diff --git a/alethzero/MainWin.cpp b/alethzero/MainWin.cpp
index 67f50da3e..0703a44a6 100644
--- a/alethzero/MainWin.cpp
+++ b/alethzero/MainWin.cpp
@@ -462,7 +462,7 @@ QString Main::lookup(QString const& _a) const
 
 void Main::on_about_triggered()
 {
-	QMessageBox::about(this, "About AlethZero PoC-" + QString(dev::Version).section('.', 1, 1), QString("AlethZero/v") + dev::Version + "/" DEV_QUOTED(ETH_BUILD_TYPE) "/" DEV_QUOTED(ETH_BUILD_PLATFORM) "\n" DEV_QUOTED(ETH_COMMIT_HASH) + (ETH_CLEAN_REPO ? "\nCLEAN" : "\n+ LOCAL CHANGES") + "\n\nBy Gav Wood, 2014.\nThis software wouldn't be where it is today without the many leaders & contributors including:\n\nVitalik Buterin, Tim Hughes, caktux, Nick Savers, Eric Lombrozo, Marko Simovic, the many testers and the Berlin DEV team.");
+	QMessageBox::about(this, "About AlethZero PoC-" + QString(dev::Version).section('.', 1, 1), QString("AlethZero/v") + dev::Version + "/" DEV_QUOTED(ETH_BUILD_TYPE) "/" DEV_QUOTED(ETH_BUILD_PLATFORM) "\n" DEV_QUOTED(ETH_COMMIT_HASH) + (ETH_CLEAN_REPO ? "\nCLEAN" : "\n+ LOCAL CHANGES") + "\n\nBy Gav Wood, 2014.\nThis software wouldn't be where it is today without the many leaders & contributors including:\n\nVitalik Buterin, Tim Hughes, caktux, Nick Savers, Eric Lombrozo, Marko Simovic, the many testers and the Berlin \304\220\316\236V team.");
 }
 
 void Main::on_paranoia_triggered()
diff --git a/libdevcore/RangeMask.h b/libdevcore/RangeMask.h
index f1b0043ff..e6a66776c 100644
--- a/libdevcore/RangeMask.h
+++ b/libdevcore/RangeMask.h
@@ -43,7 +43,7 @@ public:
 	using Range = std::pair<T, T>;
 	using Ranges = std::vector<Range>;
 
-	RangeMask() {}
+	RangeMask(): m_all(0, 0) {}
 	RangeMask(T _begin, T _end): m_all(_begin, _end) {}
 	RangeMask(Range const& _c): m_all(_c) {}
 
@@ -150,7 +150,7 @@ public:
 
 	bool full() const
 	{
-		return m_ranges.size() == 1 && m_ranges.begin()->first == m_all.first && m_ranges.begin()->second == m_all.second;
+		return m_all.first == m_all.second || (m_ranges.size() == 1 && m_ranges.begin()->first == m_all.first && m_ranges.begin()->second == m_all.second);
 	}
 
 	void clear()
@@ -158,6 +158,12 @@ public:
 		m_ranges.clear();
 	}
 
+	void reset()
+	{
+		m_ranges.clear();
+		m_all = std::make_pair(0, 0);
+	}
+
 	std::pair<T, T> const& all() const { return m_all; }
 
 	class const_iterator
diff --git a/libethereum/DownloadMan.h b/libethereum/DownloadMan.h
index 3b88040fd..bf4a7db7f 100644
--- a/libethereum/DownloadMan.h
+++ b/libethereum/DownloadMan.h
@@ -63,8 +63,8 @@ private:
 		Guard l(m_fetch);
 		m_remaining.clear();
 		m_indices.clear();
-		m_asked.clear();
-		m_attempted.clear();
+		m_asked.reset();
+		m_attempted.reset();
 	}
 
 	DownloadMan* m_man = nullptr;
@@ -109,7 +109,7 @@ public:
 				i->resetFetch();
 		}
 		m_chain.clear();
-		m_blocksGot.clear();
+		m_blocksGot.reset();
 	}
 
 	RangeMask<unsigned> taken(bool _desperate = false) const
diff --git a/third/MainWin.cpp b/third/MainWin.cpp
index 280fe7ba0..10f07ef6a 100644
--- a/third/MainWin.cpp
+++ b/third/MainWin.cpp
@@ -347,7 +347,7 @@ QString Main::lookup(QString const& _a) const
 
 void Main::on_about_triggered()
 {
-	QMessageBox::about(this, "About Third PoC-" + QString(dev::Version).section('.', 1, 1), QString("Third/v") + dev::Version + "/" DEV_QUOTED(ETH_BUILD_TYPE) "/" DEV_QUOTED(ETH_BUILD_PLATFORM) "\n" DEV_QUOTED(ETH_COMMIT_HASH) + (ETH_CLEAN_REPO ? "\nCLEAN" : "\n+ LOCAL CHANGES") + "\n\nBy Gav Wood, 2014.\nThis software wouldn't be where it is today without the many leaders & contributors including:\n\nVitalik Buterin, Tim Hughes, caktux, Nick Savers, Eric Lombrozo, Marko Simovic, the many testers and the Berlin DEV team.");
+	QMessageBox::about(this, "About Third PoC-" + QString(dev::Version).section('.', 1, 1), QString("Third/v") + dev::Version + "/" DEV_QUOTED(ETH_BUILD_TYPE) "/" DEV_QUOTED(ETH_BUILD_PLATFORM) "\n" DEV_QUOTED(ETH_COMMIT_HASH) + (ETH_CLEAN_REPO ? "\nCLEAN" : "\n+ LOCAL CHANGES") + "\n\nBy Gav Wood, 2014.\nThis software wouldn't be where it is today without the many leaders & contributors including:\n\nVitalik Buterin, Tim Hughes, caktux, Nick Savers, Eric Lombrozo, Marko Simovic, the many testers and the Berlin \304\220\316\236V team.");
 }
 
 void Main::writeSettings()