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MacBook Pro and ATI X1600 Graphics Card

I love my first generation 17" MacBook Pro, but a few weeks ago I started having issues with the display. Horizontal lines, blocks of gradient color, random display freezes, and now distorted or stretched images. It only happens once the laptop gets into "normal" operating temperatures (CPU @ 150F, GPU @ 130F.) Rather than re-write everything that's been written, I'll just post the links I've found regarding this issue. If you're having the same problems, feel free to post your findings in the comments below. I re-installed SMC Fan Control, and managed to get the CPU temperature down a few degrees, but still haven't managed to get rid of the display anomalies. It seems to be a heat issue, but as anyone with one of the early MBPs can attest to, heat has always been an issue on these machines. Mine is out of warranty, and is also a work laptop--so I can't even really take it apart to see if I can fix any obvious thermal issues myself. I'm frustrated, and afraid it's going to die on me... And I doubt our department has the budget to replace it.