Okay, so a weird thing keeps happening on my wife's Windows 7 machine (I'm nearly at my wits end and about to rebuild it!). In short, she will be using it and all of a sudden the mouse just completely vanishes and you can't get it back. In fact, the entire thing may freeze up at that point (I can't quite recall).

My initial thoughts is it would be the video driver, but I'm at a loss, as that hasn't been updated for a long long time. I'm not that keen on debugging Windows problems (especially when they are related to the hardware/drivers). Can anyone give me some insight on hopefully finding a way to resolve this without rebuilding the machine?