I am using v075 performance core x64 compiled by King Of Chaos from the bsnes forums. Games seem to run error free on that version. The runitgame.bat loads the emulator and the game runs fine, just not in fullscreen. If I leave an explorer window open when I start GameEx, I end up with explorer fullscreen and bsnes windowed. The key gets sent to explorer instead of bsnes for some reason. bsnes seems to have focus because when I hit F11 manually, it goes to fullscreen.