Log Attached. Something I noticed, after scrounging through my GameEx Config. If Triple Buffering is enabled, MAME will input lag when launched from GameEx. Outside of it, it's fine. With Triple Buffering disabled, GameEx (so far) is behaving as normal. Admittedly I'm a little skeptical of it being resource related? Just because this rig is a 2.83ghz Core2Quad clocked to 3.74, 4 Gigs of high end ram, WD Caviar Black HDD's, and a Radeon 4870 1GB. Maybe something to do with Triple Buffering? Also, I'm convinced, after screwing around with HS, MaLa, etc, that everything sans GameEx sucks. Just bought a GameEx license for this year. When it comes to functionality, while the config may still be a little messy, GameEx blows the other options out of the water. Keep up the good work. log.txt