Window Manager Freeze

[golgaris]

Hi all,

the window manager freezes on my computer, when I leave it running.
When I'm back to my computer, then the window manager is frozen:

• The mouse is moving, but no mouse click is working
• Programmes are running, the window inside the frame is updating, but the frame itself is not there
• Keyboard doesn't work
• When I press the power button, then the logout / reset / shutdown buttons are shown, but I cannot choose one (no mouse click, keyboard)

My computer's data:

• Updates from Edgy
• newest NVIDIA driver from nvidia.com
• Installed, but inactive Beryl (I chose KWin in the Beryl manager)

(I Would have a dmesg output, but cannot upload it ... so will post it, when it works again)

Does anyone have ideas?

Thanks