This is happening in GameEx and Acade Edition. Occasionally when starting a game, it will just be black, but the sound works. Usually we can exit and restart, then it works okay. But sometimes once it goes black, we can never get a display back, and have to either use Alt+F4 to quit hard, which doesn't always work either. In the attached log, the first time I tried to run 1945kiii it did this. The log indicates that after I exited MAME (which I could not see), there is an message about