http://support.apple.com/kb/TS3630 Seems to be similar to that 1900XT replacement program for 2006/7 Mac Pro's. Assuming the serial number matches up, I wonder if I could bring in my 2600XT card even though I don't have any problems with it. (As a matter of fact, I only used the card for maybe 3 months total, because I got a 3870 in 2008, and most recently a 5870 a few months ago.) I'm also curious to know what replacement card Apple would give. 8800GT possibly?