[Caged Great]

okay, this is exactly what's happening.

I start the computer up, it loads normally, but when it's about to come to the main desktop page, it freezes and the monitor goes any of a number of colours.

Occasionally, when that doesn't happen and the desktop loads, it sometimes will freeze and the screen turns green or black (or both)

Occasionally, it works normally but if I try to load any thing with a video or game it does the same thing above.

It's just a little strange because I haven't downloaded anything other than that update in the last week, but I'm thinking it has something to do with either the interaction between the video card and processor, the video card, or some general glitch.

I'm not sure exactly.