Im playing oblivion on my laptop with windows 7 and shes been fine for months now but as of yesterday as soon as i load a saved game, the game stops, a small black box appears at the top left of the screen at the same time as a 'not responding' dialogue box appears on the desktop. At this point i lose mouse cursor and can only use ctrl-alt-delete to access it again.
1. Why is this happening NOW after such a long period of enjoyable gaming?
2. How do i sort it out?
I apologise for the layman's terminology but im not the most expert of gamers, any help at all would be deeply appreciated!