I have ML 10.8.2 on my AMD laptop. Specification AMD Phenom II n830 Triple core 2 GB DDR3 Ram Ati Radeon 5470M 512 MB The problem is sound, UI, and videos have lag. But if i move mouse no lag. I have tried voodootscsyncamd.kext but i doesn't work(the kest is loaded) So what should i do? Thanks