Hello! this is my first post and i was doing some research to solve an issue, the research (thanks to google who led me to this sweet site). I recently bought a graphic card, X1900XT to replace my old X1990XT which just worn out after 9 years. Yep it lasted that long! wow... and the card that i bought last week turned out that it was in PC. Talked to the dude and he mentioned something about a driver, he gave me a link from apple's support for the driver update but.... it was for 10.4 while mine is 10.6.8. I would appreciate your help me to fix the issue for the card or point me out to a better card that can run well for Mac Pro 2,1 (2007). I looked all over the site to find the issues but could not help with the right words to match my issue. thanks again!