Virtual Users And Domains W/ Postfix, Courier and MySql + Squirrelmail prob

[nsurge]

Hi,
I'm trying to setup squirrelmail on a remote server to connect via IMAP to the host running Postfix, Courier, and Mysql (on FC5 64b). It's able to connect and authenticate (which shows what's in the inbox), but it's having a problem with creating the initial folders. (I also can't create any folders in Outlook/OE). I'm able to pop email and imap from the server from O/OE w/o any problems.

This is the error i get on the left hand folder view pane and what I get if I go to the folders options and try to create a folder:

ERROR:
ERROR: Could not complete request.
Query: CREATE "Sent"
Reason Given: Invalid mailbox name.

I thought SquirrelMail, or Courier created the default folders it needed in the /home/vmail/domain/user directory automatically, but dosen't seem to be the case. I havn't found any info on this on google or here, so I apologize if I overlooked it. The testconfig.php says everything looks good. I'm able to send email find also, so I know it's mostly setup correctly.

Thanks any info,
Nathan