When I do a videochat in skype, the whole system freezes after a while. This while can be a couple to 10+ minutes. The system locks up usually when I start or close some other apps in the background. When it happens the screen doesnt change anymore, and the sound stutters the last half second over and over again. Nothing helps, not even the magic sysrq keys (REISUB), which otherwise do work (tested it). I suspect this could be a result of a new videocard in the system (the problem started around that time, when I swapped the old GeForce 7300 GS to a new 8600 GT), but everything else works flawlessly, 3D games, movies, compiz, everything, except skype. Is it possible that a hardware problem causes a problem of this magnitude only with skype? I couldn't find anything in the logfiles after reboot. There is no overheating of the nvidia card or cpu, I constantly check it with conky. Later I'm going to switch back to the old videocard, and test, to see if it is hardware related. Please help me to find the problem if software related. Cheers SanskritFritz