I'm using an AMD 750, and poser gets hosed from time to time, but then again, I can't even delete files without ME getting hosed. I only use windows for Poser and Vue, so It get's restarted almost daily (which MS seems to expect.....to bad wine ain't up to direct-X) I'd say you have a HW problem. I had a network card that caused a Win2K machine (at work) to occassionally reset. Unfortunately, the network card also prevented it from resetting properly, so it just sat in the nether land, neither on, nor off. Replacing the card fixed everything. The 1.47 sounds a little strange to me, are you certain that it isn't "overclocked?" If so (of course this would fall back to the heat issue) it might be part of the problem. eric