1st up the Spec Dell Optiplex GX620 Dell 1707PFt monitor Windows XP Pro DVI cable Intel 82954g Express Chipset This fricking thing is killing me! Problem is that when rotating the screen either using the Hot keys or the Intel app, the PC restarts. No warnings. No nothing in the event viewer. I've updated all drivers to the latest genuine flavours and still no luck. Googled for hours and nothing coming up. Any ideas? Any other info needed? Cheers