Two types occur :

-The roulette wheel spins infinitely and the loading screen background changes, but the game is stuck and will not load even after 5+ minutes

-The roulette wheel and loading screen hangs with no movement

In both cases, the only thing i can do is use task manager to close the game.

This happens EVERYWHERE, there is no specific map area that it is limited to and it occurs randomly. It can also occur if i am loading a savegame.

Specs : i have the lenovo Y460P : http://shopap.lenovo.com/sg/en/notebooks/ideapad/y-series/

I have stock drivers for the onboard sound, catalyst 11.11 and latest 64 bit win 7 patches.