I had/have a similar situation with one of my users as well. He's got one Archive and two Personal Folders listed in his folder list. The Archive one is good. I too am unable to delete either of the Personal Folder listings. And on one of them, when I click on it, it says it is unable to locate the file but there isn't one. If the .pst file doesn't exist shouldn't you be able to delete the listing form the folder list? The other one gives me an error message, but I don't remember what it is off the top of my head. If I get a chance to get to this user's machine today I'll post it.
Jessica Kinsey
HelpDesk
Hiscock & Barclay, LLP