I've been having this problem lately when i have a couple of different "browsers" open and uploading or downloading files at the same time. My computer starts to hang...then my redraw goes away. I close open windows and Task Manager sees them as being shutdown, but the screen doesn't get rid of the graphics. I seemed to have fixed it a couple of times when emptying the cache for internet explorer...but it keeps coming back. Does anyone have any ideas? It couldn't be bad ram...could it? Everything seems to run fine when not connected to the internet.