Okay i made it work finally. Tried reinstalling Nebula 2.25 and now everything runs fine. Now i don't know what the heck happened back there... but it seems i was slowly having control problems with my SNK games. It started with KOF2K3, then Garou, then just about now Metal Slug 3. That's about the time i decided to reinstall. Now the games work without control problems. Really, i don't know what happened why it eats my SNK controls while i got everything configured properly. Sorry for bothering you guys here, and thanks! ^^,