VM hangs when running Win 7

[Johnny Doo]

Hello,

I have a big trouble using a Win 7 x64 VM. When i close virtualbox, saving state to disk, it ends up to an endless state.

Sometimes it works (not often), but most of the time it fails.

Can you help me to troubleshoot this ? I'm running Snow Leopard, on an imac 22'' core i5 cpu.

Any help for the VM virtual hardware configuration ?

Exporting the VM to a window host (Windows 7) let run it flawlessly.

Thank you, i don't really know where to look for this problem.