Index: src/manager.cpp
===================================================================
--- src/manager.cpp	(revision 427)
+++ src/manager.cpp	(working copy)
@@ -3282,6 +3286,12 @@
     
     delete sizer;
 
+    if (rect.IsEmpty())
+    {
+        HideHint();
+        return;
+    }
+
     // actually show the hint rectangle on the screen
     m_frame->ClientToScreen(&rect.x, &rect.y);
     ShowHint(rect);