I think I have found the solution to your problem. If you follow this link http://trolltech.com/developer/notes...changes-3.3.8/ you will see there was a problem with capturing F2 in QTables that they had some problems. Do you have a QTable in your main window? If so try subclassing the QTable and ignore the key press event at least for the F2 key so it goes up to your main window. Let me know if this helps and if it does not I will look for other ideas.