While I'm racing after usually 7 or 8 laps all of a sudden the screen drops down to the task bar and I get the desktop. I was told to Ctrl c to lock the mouse to the screen but that didn't work, I've triied shutting down my firewall and microsoft antispyware thinking they had something to do with it, turned of my screensaver and nothing seems to work, I always hit the wall or cause an accident because I start to drive blind untill I get the screen back up. What is up with my PC????? Thanks, Speedrce