When I try to edit a widget it is ok. I can change settings in any widget but when I try to end the changes and hit the button in the rigjt upper corner and get back to the desktop everything crashes. The solution for that is to hit the camera button (I have camkeyd installed) and everything is ok after that. When I just want to move a widget on the desktop it is ok, but applying changes in it's configuration is causing this problem.

Edit: I can also solve this by hiting ctr and backspace buttons fro the keyboard.