I am experienceing the problem some are having lanching AE CS6 with ATI graphics cards so though I would look into changing to a Nvida one. Whitch ones work well with AE on macpro1,1 (2008). I am a student so will probably but used.
Regards,
Ben
PS would be good if it worked with FCPx/Resolve.
North America
Europe, Middle East and Africa
Asia Pacific