Entering a game on MW2, as you do.... i notice i can't choose a class or anything, my X and O buttons just become disfunctional and stop working. I reset PS3, and notice my X button doesnt have any effect and nor does my O button, yet the directional buttons work. After some intense experimenting, i have discovered my X and O buttons only work if i press a directional button at exactly the same time. WTF?? I would'nt be so bothered but this is a mates Controller, not mine. Same with the whole set of buttons on the right side of the controller infact, they only work if i press a directional button at exactly the same time.

I have tried to reset it, nothing..... HELP!

It's a Dual Shock 3 by the way.