That's very weird, I'm not sure. Especially since I upgraded from SP2. I originally installed on here with an SP2 disk so SP0 has never been on this PC. The upgrade went OK as far as I know, nothing else seems to be broken. Guess windows update must have messed something up :/. It might have something to do with the fact that I tried to install the SP2 UXTheme patcher after the upgrade (I wasn't thinking, I was so used to running it on PCs with SP2), but I restored it once I realized it was only for SP2. Unless that somehow restored the wrong version of the file or something.