So I've got a Radeon HD 5770, and just today while I was using PCSX2 (a PS2 emulator) I encountered artifacting that was even going outside the rendering window... since then I've been getting artifacting and entire system freezes randomly, multiple times today. Here's a dump of info. Ran Prime95 for a bit in case it was the CPU, no issues. Switching the windows theme to one that doesn't use AERO makes the artifacting go away, and switching it to an AERO one makes it come right back. Restarted like 5 times, no dice. Ran FurMark a few times, this doesn't actually seem to affect anything, strangely, nor does it keep the system from freezing. If there's artifacting it does nothing to stop or enhance it, if there's no artifacting it does not create it. Running FurMark is actually the only time I've heard my GPU's fan speed up (and boy, did FurMark kick it up a few notches as the test went on). The freezing and such does not seem to happen in safe mode, or in normal mode with the video driver uninstalled. I can restart the system with AERO on and do nothing, and the system will freeze by itself eventually, say 10-15 minutes, so I don't think it's GPU usage or temperature (the fans don't rev up by themselves, at least). When the system freezes, the mouse cursor vanishes (further directly pointing to the GPU). I've tried the 11.8 and 11.9 drivers, and the default one Windows likes to give me, no improvement. SFC /scannow found nothing wrong. chkdsk /f didn't appear to fix anything. So is this pretty much a confirmed case of damaged hardware?