CTD after joining an internet game.

[Freddy120]

So,I was eagerly waiting for a new patch,and I saw patch .91! Downloaded right away and played for a while.Was satisfied and happy.Next morning I wanted to play again,so I ran pr and now everytime I join an internet game after I click squad assignment I get a CTD without any sounds or messages.I could play well for 1 day but it suddenly stopped working I tried joining multiple servers that are patched.But nothing Someone PLEASE help me!