CF not working have some ideas?

As is well known Cf is not working properly after new pach,I tired everything(from downloading game from all sources oficial downloads alt. downloads etc)I even reinstal windows.I played Cf since the beta on the same version of Windows and never have a single problem bun now it simply dont work.My buddy have the same problem,I can log on to game but when I try to do anything like switch channels,repair weapon or when I am done with a game in the room the game simply freezes.I must turn it off with Task menager and when i turn it up the results is still there.
So if some have a solution I will be extremely thankful.