I'm having a problem. Sometimes, when i want to work on textures, I run the game in a window. When I do that, at least half the time, when I get to the title screen, my enter key doesn't work. All the other keys work, but I can't start the game. To get around this, I press Alt-Shift-Enter, and it blanks the screen. Then, the enter key works, but i can't see the screen. So then, I press control-alt-delete, and it gets me back to the screen, but then sometimes, no keys work.

Has anybody experienced this, or does anybody have any ideas why this might be happening? It happens on different computers, but all are running windows XP with service pack 2.