Folder Redirection Mystery

I have a strange issue.  I take care of a 2008 server that was not originally set up by me.  I just recently took over administration of it.  Yesterday the hard drive for one of the partitions (D) went bad.  Unbeknownst to me there was no mirror of the drive so the data was lost.  Most has been restored from a backup, but one folder was not part of the backup and therefore was not restored.  Evidently there wasn't much of use in the folder except one thing...   When I log into the server as Administrator now, it is looking for the desktop from that folder, and of course it isn't there, so it just gives me a temporary desktop.  If I go into the User folder, and into the Administrator folder, all the folders in there have the little lock symbol except the desktop.  And the desktop folder in there is empty.  But for the life of me I cannot figure out how this server was configured to look to the D drive for the desktop, so I haven't been able to undo the setting.  Nothing is configured for User Configuration in any group policy settings (where you would normally configure folder redirection).  There is no logon script, no profile settings in Active Directory Users and Computers.  It's listed as a local profile in User Profiles in System.  And it appears that it was only the desktop that was looking to the D drive - everything else (documents, downloads, etc.) are intact on the C drive.  Where else can I look to find this setting so I can undo it?  I suppose my alternative is to recreate the path it is looking for and put the desktop there, but that would be a bandaid, not a solution.  Thanks in advance!