problems with joint opps

[madadds]

my problem is that once ive joined joint opps my mouse wont let me look around. but the thing is i can still shoot and use the scope to zoom in ive looked in options to see if i can change my mouse actions but there is,nt eny thing that can help me ive also uninstalled joint opps then reinstalled it but i still car,nt use my mouse too move around and look. can some 1 plzs help as at the moment i car,nt play the game at all thanks for eny help my email is madadds@aol.com