Shawn,
I have tried to reproduce it several time but failed. I remember when it happens, when I tried to save the file to the desktop, the 'Save As' Windows was still loading and folders and files are keep appearing (I have a lot of folders & files on my desktop). At that split second before load was completed, I hit 'New Folder' button and accidentally highlight the user folder shortcut. I was creating new 'London' folder for my file and only letter 'L' been taken while load was completed. When I realize that, it was too late. Ctrl-Z won’t help to undo it. There got to be a registry value where I can change that. 'L' is too hard to do the search in the registry. Millions result will turn up. I saw your desktop user folder icon change tutorial, maybe that's where I should start looking in the registry.
Gomjaba,
Not sure how to restore previous version. Right click on L user folder shortcut? There is no property available. Or you are referring to something else?
George