Punkbuster Error: Kicked for "Disallowed Program Driver[125055]"

[HERO_480]

Any ideas on what is causing this error? It just spontaneously started this afternoon when i tried to play a match.
I tried updating punkbuster and all that. I haven't downloaded any sort of hacks/cheats/bugs. Any ideas? Thanks.

[(TM)KillJoy]

I have heard of this error ...it means you changed or modded something.

[Gozab]

I've had this exact same problem about a week ago. Try rebooting your computer and close all 3rd party programs before starting BF2. See if that fixes the problem.

[HERO_480]

Closing all other applications and restarting didnt help. I made some changes to the AI files to allow 64 bots on singleplayer. Maybe thats the problem?
Thanks for your help guys.

[jdrou]

Closing all other applications and restarting didnt help. I made some changes to the AI files to allow 64 bots on singleplayer. Maybe thats the problem?
Thanks for your help guys.

If all you changed was aidefault.ai or serversettings.con that should not affect your ability to play online. Have you done a virus scan lately?