Version: unspecified (using KDE 4.5.1) OS: Linux Holding hotkey for Desktop Grid crashes KWin. Reproducible: Always Steps to Reproduce: 1) bind a hotkey to Desktop Grid effect (I use Alt+`) 2) enable Present Windows effect in Desktop Grid settings 3) hold it for 1-2 seconds (without Present Windows effect crash happens as well, but you may need to hold the hotkey much longer) Actual Results: KWin crash.
For future reports you should always add a backtrace (the bug might not be reproducable on other systems as eg. drivers might be involved) (click on details when "Dr. Konqi" shows up) *** This bug has been marked as a duplicate of bug 244813 ***