Anyone else run into this problem....sometimes when playing with 1 or 2 friends my MAME (run through Hyperspin), will kick out of the game and into the desktop screen. I then have to select Alt Tab to get back into the game which is still running. None of my keys are mapped to Alt Tab so there is no way that they are being pressed while multiple people hit keys at the same time.
Is there another key combo that would cause this?