I decided it was probably time to update to 10.7.5 on my 1,1 2X2.0GHZ mac pro so I did. I "had" a GT430 in there with the 10.7.4 drivers installed, I understand that it may not be the best card in the world but it got me through the day. The computer resets and everything is going fine so I decide to go take a shower and turn off my tv I use for a monitor. I come back and turn it on and it just sits at sky blue. I recreated the problem with same conclusion, having to have to press power button to restart every time. Maybe this is a driver issue I think so I go and find the NVIDIA driver for 10.7.5 and go and try and install it. "This computer doesnt support GeForce or Quadro graphics" So now I'm stuck with my 1900XT till I can either get a refurb 21.5in iMac on tuesday or figure out how to fix this one. Anyone have any knowledge they would like to share and save this broke college student?