If it hangs, it most likely means your system isn't that good or some other reason, usually a misconfiguration. All I can say is wait, it should be working better on some picky systems a couple releases ahead, but who am I to talk? Ask Hotquik or Or9, they'd know more then I would. ;P
IMO, there's always going to be a system which it won't work properly on. Sure your GCM is a valid one?
does it hang or emulator is still running? (still has an FPS).
does it show dolby logo?
try wireframe to see if you see the guy on the cloud. it should be that 3d sequance right after.
latest drivers installed on your card?