OK I found that a few games crash while playing. Top Spin Tennis and FIFA 07 both crash after 5 mins of play. The system just turns off. I have a M3 Simply with a 1 gig kingston card on a DSL. Most all other ganes run fine. I trim all of my games. Is there a reason why a game would crash?? Am I doing something wrong? Also as a new person here, what is the left button that changes from green to red on the main screen used for?