diff -r 804e9076d136 -r 83dd3447a212 QTfrontend/ui/page/pagemain.cpp
--- a/QTfrontend/ui/page/pagemain.cpp	Fri Feb 17 15:55:31 2012 +0100
+++ b/QTfrontend/ui/page/pagemain.cpp	Fri Feb 17 17:43:59 2012 +0100
@@ -84,7 +84,10 @@
     bottomLayout->addWidget(mainNote, 0);
     bottomLayout->setStretch(0,1);
 
+    btnBack->setWhatsThis(tr("Exit game"));
+    
     BtnSetup = addButton(":/res/Settings.png", bottomLayout, 1, true);
+    BtnSetup->setWhatsThis(tr("Edit game preferences"));
     return bottomLayout;
 }