HaloMods "Classic" Read-only Archive

im new here and i have a problem with my halo pc halo was working yesterday but now when i go to play it an error comes up saying "halo has encountered a problem and must close. we are sorry for the inconvenience." and the error report says "this error report includes: information regarding the condition of halo when the problem occured; the operating system version and computer hardware in use; your digital product id, which could be used to identify your license; and the internet protocol (IP) address of your computer." what can i do to stop this? i was playing it yesterday and it ran fine but now it keeps coming up with that. also i have tried uninstalling it and reinstalling it and it didnt work. PLEASE HELP! thank you.

When does it happen?

it happens whenever i try to play halo pc.

Check:
1. Drivers
2. Hardware
3. Other programs that may cause conflict.

nope nothing.

Have you installed anything in the time that you installed to now?

i uninstalled gamespy arcade and clone cd but thats it

i think its my cd key. damn and the only reason i got the game was to mod the single player.