Item description Card, Video, ATI Radeon X1900 XT, 512 MB, Ver. 2 I had a replacement graphics card on the way for one of my mac pro's, but Apple ordered the wrong one. When not even the wrong one showed up today, I called up to sort things out. I hung up on the first CSR after 10 minutes of getting nowhere. He didn't actually understand what a DIY Repair was, or what to do with the replacement part dispatch number. I don't blame Apple for that, sometimes that's just the way it goes. Anyway, second CSR, a squillion percent improvement. Incorrect replacement part (nVidia 7300 GT) cancelled. Then the confusion started: Apple has two versions of the ATI Radeon X1900XT on their system - Ver. 1 and Ver. 2. The specifications are identical. I only ordered a replacement card for another system a few months ago and there was no mention of two card versions then. So, what's the difference? And, assuming V2 is an improvement, why are Apple still shipping V1? FWIW I've asked for V2, as when nobody could figure out what the difference was after over 30 minutes I decided to take my chances.