ok all this talk aobut tiger, some 'core image' thing and vram seems to point at the fact that i will need a 128mb vram card to run tiger sufficiently. i have a 12" 1.33ghz powerbook G4, i don't know what card i have in here, but i'm scared, i don't want to have to buy another computer, i wasn't planning on doing that untill the G5 powerbooks (god willing ) but now i'm scared, i don't want tiger to run slow. why would apple do something like this when they KNOW that half of the people who are going to want to run tiger will probably have oleder systems. not everyone is RICH and up to date.