Wanna try flashing your cards BIOS with an XT BIOS?
EDIT:
http://www.techpowerup.com/articles/...ing/vidcard/34 - Guide on how to do it
http://www.techpowerup.com/vgabios/9...12.070416.html - Sapphire 2900XT BIOS
Try it out, but I can't guarantee it will work. No reason why it won't, though.
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