instead of a complete reinstall, try first copying gw.dat somewhere safe, then do the uninstall, then go back in and put the gw.dat back where it was originaly. it will save gigs worth of downloading if it works
Alright, I did what I said I would do, and reinstalled it all. Everything seems to work fine. The update must've messed something up during the download for the new update. Hope this helps anyone still having this problem.