When I play roms, my comp starts buzzing and rumbling. Eventually it stops, and then starts again. In fact, it's probably the same exac thing you've got. Hmmm...

The game doesn't restart. Only the sound, right?

I think it has to do with the rough cut fashion that ROMs seem to be made. Like they don't run well. I've also heard of them having literally destroyed computers on some occasions.

That's why, really, I'm so happy that everything is remade now. I don't need (and I never wanted) to play roms anymore.