When I tried to play TF2 today, I found that the game wouldn't register that I was clicking my mouse. I thought it was lag, so I tried another game that wasn't an MMO and I still had the same problem. I moved the mouse to different ports, changed mice, and I even restarted my computer and I still have this problem. I can move and look around, but anything that has to do with m1 or m2 just won't work. Please help?