I have Windows 7 Ultimate 64bit instal;led on my machine and for the last few months I have been getting this annoying problem vexing me. When I use Win Explorer and right click on the Left pane, all that happens is that I get an error of sorts and the screen goes kinda white and shuts down explorer and I have to restart. The REALLY annoying thing is that it DOES NOT HAPPEN EVERY TIME. It does vex me somewhat and I want to BEAT the computer to death but, it would cost me too much to replace so, I have put up with it. I was HOPING that someone has come across this sort of thing before and would have an idea?