OK, I installed UT a week ago, and apart from having no sleep for 7 days I have a problem. I can only play in single player mode. When I start either a practice game or try to join a internet game all I do is zoom around "viewing" the action rather than taking part. How do I get into these games??? I've tried every combination of fire/keys.button I can think of and I just can't get it. HELP ME PLEASE!