Hello! So I've bought a new ML and installed as a clean copy (MacBook Aluminium late 2008, 8GB DDR3), no update. And the OS is very fast, Launchpad works fine, in Lion there was a problem with choppy animations on my GPU but it is fixed in ML. But there is another issue. For example if I'm playing Minecraft it works very well for a first 5 minutes but later... Horrible experience. FPS drops from 60 to 15-20. And after I close Minecraft app, animations in Launchpad are very choppy! It gets better, after few minutes. It looks like performance of GPU is worse when it's hot. I'm pretty sure that it is not depend on Minecraft because sometimes I can experience it by only using OS. Do you 9400M users have the same issue? Is it possible to fix it?