Does anyone have any suggestions on what could be causing the explorer to not respond? It seems that when I'm using active desktop with a wallpaper being displayed my explorer hangs up on me from time to time. I do a ctrl-alt-del andc it tells me that it is not responding. I have to terminate it and then the system says it has become unstable and I have to reboot. Can someone please help me with this problem. I have update the graphics and memory controller driver to no avail and even tried different wallpaper to see if that would help. Still getting the problem.