Hey guys, After upgrading to Leopard, I am still getting very choppy animations (dashboard, expose, stacks, etc.) on battery power only. On A/C power, graphics are extremely smooth. I noticed that when I'm on battery power, if I open up iTunes and scroll through coverflow for a few seconds the animations turn smooth as well as all other functions. The animations remain smooth for a minute and then go back to being choppy. Do I just have a faulty ATI x1600 driver? Is it possible to remove and reinstall the driver somehow? Can anyone explain this phenomenon? Thanks!