On Thu, 2006-12-21 at 10:39 -0500, Dave Phillips wrote: > Greetings; > > I'm happy as a clam in mud with my new machine, but it's developed a > problem. I purchased an inexpensive nVidia-based card that's starting to > behave poorly. I think the hardware itself is buggy, the display will > sometimes shudder rapidly side-to-side, blurring the screen view. > Sometimes it stops and stays stopped, other times it goes on until I > have to reboot. The problem doesn't appear to be a heating problem, but > I've decided to go for a much better card anyway. It sounds to me like the monitor is on the edge of losing synch, but it is hard to say without actually looking at the screen. You may want to try different (probably vertical) scan rates in the xorg configuration file (it could also be the bit clock for the video - but changing that requires a custom modline in the xorg file...) -- Fernando