error - can't move to next level

I've come across a serious problem in Tribes Vengeance: in the Prison single-player level, when I try to enter the prison, I get an error message "can't find file SP-Prison-IN", and I'm stuck in the exterior portion of the map.

I checked the Maps folder, and there's a SP-Prison-Interior.tvm file. When I renamed it to SP-Prison-In, the program still gave me the same error message.

Help!
Wrayk

Reinstall?

Uninstall?

Fixed.

Reinstall?

Sounds good. When I uninstall, what do I need to do to keep my saved games?

I don't think you need to uninstall per se, just install the game over your old copy. Even if you do uninstall, I would imagine it keeps your saves.

Well I just uninstalled and reinstalled, updated, loaded my game and... the same problem occurs.

Is there a cheat code to load up a certain level? If not, I'm screwed.

Thanks,
Wrayk