just started trieing 2 play on again and when i log onto a server in reads "this server only plays on unmodified content please revert back to official patch or something like that.....I'm running 1.41 special forces-downloaded it on battlefield files.
also the patch i'm running is an official patch.
Are you using a NoCD .exe instead of the original one?
Also this should be moved to the BF2 section, since this is the one for BF1942. ;)