Since i've installed 1.7 version on my pc, i can't play on any punkbuster "on" server. When i join the server and when the map is loaded, "Connection interrupted" appears and then either server dissconnects me or punkbuster gives me permanent ban and this message:
"TuTkum PunkBuster permanent ban issued on this Game Server for player 'TuTkum'... GLOBAL PunkBuster GUID BAN 36eb25e2".
I've never played cod4 with cheats. On non-punkbuster servers i play normally but i can't suffer cheater.
Should i reinstall cod(apply the patch again) or there is something else i can do???

Theres only one solution.Go to PBBans | Global Bans and submit a support ticket to say that you were falsely banned.