I have this problem intermittently on both my machines, too. There seem to be 3 modes of failure:[list=1][*]Windows Explorer does a restart - All the icons on the desktop are cleared, as is the taskbar and tray. Then the desktop icons are refreshed and the taskbar and tray return. No harm done, computer is as it was before the event.[*]Windows Explorer does a restart as above, but this time not all items in the tray are restarted. Some of these are start-up items, such as my software firewall, malware scanners, etc. The machine appears to run ok, but because it has obviously had a hiccup and is not in the same state that it was preveiosly, I usually reboot it to clear its head.[*]A window pops up "We are sorry. Windows Explorer has encountered a problem and needs to close" etc, with an offer to report the problem to MS. The machine must be rebooted to recover from this event.[/list=1]
These events seem to occur only when I am exiting a program, but not always the same one.
In the last case the replies from MS always blame a device driver, but MS has never been able to identify which one and I have never had the time to pursue it because it is a very intermittent problem.
AA