Do not show green tick unless all known blocks are downloaded (fixes #921)

src/qt/bitcoingui.cpp

@@ -552,7 +552,7 @@ void BitcoinGUI::setNumBlocks(int count)
     }
 
     // Set icon state: spinning if catching up, tick otherwise
-    if(secs < 90*60)
+    if(secs < 90*60 && count >= nTotalBlocks)
     {
         tooltip = tr("Up to date") + QString(".\n") + tooltip;
         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));