I'm using XP home ed. I have 2 users set up, both as administrative. Everything worked fine until 1 week ago. At that time, a problem began which is only affecting one account. When logged into the problematic account, we can't open windows explorer. I have tried in all of the following ways: 1. From the start menu/all programs double click windows explorer 2. From the start menu, right click "My Computer" and click explore 3. On the desktop, create a new shortcut to explorer.exe and double click that. (While creating the shortcut, I can navigate through the directory tree with no problem.) 4. Start/Run "explorer.exe" 5. Start/Administrative Tools/Command Prompt; cd to c:\windows; type "explorer" 6. Internet explorer works fine for the internet, but I can't put any local path into the address line, such as c:\ All of these methods do work with the other user account I have set up. I also tried creating a brand new user account and it is exhibiting the same problem. Here is what happens when I try any of the above methods of opening windows explorer: The desktop goes blank for a couple of seconds, then the wallpaper comes back and then the icons come back. I did Ctr-Alt-Del to open up windows task manager, and in the "Processes" tab, explorer.exe is running. When I try to start windows explorer, the CPU usage for explorer.exe goes from 0 to about 57% momentarily. Memory usage for explorer.exe is around 10,868K. In case it helps, my PC is an athlon XP1800+, w/ 512mb RAM. Hope someone can help. Dan.