i just got my xbox, and as soon that i got my live account i opened mw2 to play online. my NAT was open, and still it wouldn't get into a game session. it was searching for other peoples to join my lobbey, it said : testing matches, from 0-99,7 % - 0/50 good games. and it just keep stopping at 99,7% and start over again.. and then i got this notice: unable to join game session. but after awhile some peolpe got into my lobbey, like an half hour after i started. some peopel can come to my lobbey but i can't get into another game... this such, couse i have to wait upto one hour every time i'm playing. do you have any idees of what's wrong ?