open registry editor:
and make sure that AppData is set to "C:\Users\<user>\AppData\Roaming"
Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folder
AppData should be "%USERPROFILE%\AppData\Roaming"
AppData ishould be "C:\Users\<user>\AppData\Roaming"
My first one was C:\Documents and Settings\ReleaseEngineer.MACROVISION\Application Data and several others were C:\Documents and Settings\ReleaseEngineer.MACROVISION... Went to Macrovision's web site. They deal in digital rights management... I think it was software I had to download in order to buy some MP3s. Walmart is the only MP-3 download store I've used on this computer. I uninstalled the software but it didn't change the registry entries back.
I deleted all of the entries that had C:\Documents and Settings\ReleaseEngineer.MACROVISION in them (looks like they default correctly when automatically re-added) and Winbox is good again.