WTF, MTA 1.1 completly screwed up my MTA. MTA v1.0 used to work very well, without crashes. When I uninstalled v1.1, and installed v1.0, v1.0 actually got screwed up too, it kept locking up, so its messing with my system. System restore kinda screwed my sysem up so I reversed its changes. The MTA Team better fix up my system or I can never play MTA again. I don't know what the hell MTA v1.1 has done to my computer.
EDIT: I've even tried reinstalling GTA SA, then installing MTA SA v1.0. The MTA Team should of really tested this MTA v1.1. It's always crashing and corrupts the previous v1.0 somehow when I reinstalled it.