I just transferred accounts from an Ensim server (with Squirrelmail 1.4.2-1.7) to cPanel (with Squirrelmail 1.4.4) using WHM's transfer tool and everything went fine.

Logging in to Squirrelmail 1.4.4 (on the cPanel server), I see the following links on the left column:

INBOX
INBOX.Drafts
INBOX.Sent
INBOX.Trash
Drafts
Sent
Trash

These are duplicate entries which I presume was written during the transfer, how do I remove the duplicate entries? And which ones to delete - the 'INBOX.Drafts' or 'Drafts' ?

Clicking on INBOX.Drafts, INBOX.Sent and INBOX.Trash works ok but clicking on Drafts, Sent and Trash result in the following error:
ERROR:
ERROR : Could not complete request.
Query: SELECT "mail/Drafts"
Reason Given: SELECT failed: Can't open mailbox mail/Drafts: no such mailbox

How and where do I clean this up?

Thank you.