[QUESTiON]Data is invalid, re-install problem !

Grrr.. after i logged in.. it says an error : "Data is invalid , re-install specialforce" something like that...

please help me.. i want to play so badly :(

I tried
*Re-installing
*Restart
*Re-patch

STiLL
i STILL GOT THE ******* ERROR.

Scan your computer if it has a virus.