Major problem with disappearing windows in several programs and Firefox.
Firefox, Photoshop, Apophysis -several lost renders, had to start all over, BSOD 2x, all when manipulating windows or minimizing. The bad parts FAR outweigh the good parts. For me this was not ready to be released. I am not impressed at all so far. All I see is disable this and disable that as advice, here in this thread. It's like disabling Windows Blin ds for all programs and apps. What are you left with, not much.
Windows 7 x64, ATI HD5750