I have the PB G4 1.33 with the standard ATI Mobility Radeon 9700 with 64MB of DDR SDRAM. My Local mac dealer has told me its impossible to upgrade this card. Please tell me it aint so. I regularly edit 6mg photo's and it seems to take an age for them to load in compared to a XP machine with a similar(64mg) graphics card. By the way this is my first mac and I am very pleased with evrything except for this. Please help.