I don't actually get an exception, once the game is about to bring me to the main menu, it closes and says halo has encountered a problem and needs to close.

for the SVN client, I never use it, I installed it for when i was working with a UT3 team a while back, and never uninstalled it when I left. This is the first time it's ever interfere with anything, my normal HEK tools work fine, it's just any of the OS ones which gives me a problem.