[Dovecot] Lost sub-mailboxes - not showing after upgrading to Dovecot from Courier-IMAP

[James Brown]

Last night we migrated from Courier-IMAP to Dovecot 1.2RC5 and all  
seems to work fairly well, but I seem to have lost all my mailboxes  
apart from INBOX. The maildirs are all on the HD in the correct place  
(/usr/local/virtual/bordo.com.au/jlbrown):

mail:jlbrown root# ls -l
total 21400
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:11 .4D
drwxrwxr-x    14 _vmail  _postfix      476 Jun  4 00:06 .ASSP
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:06 .ATO
drwxrwxr-x    12 _vmail  _postfix      408 Jun  4 00:06 .Actionable
drwxrwxr-x    11 _vmail  _postfix      374 Jun  3 23:56 .Apple Mail To  
Do
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:12 .ClamAV
drwxrwxr-x    10 _vmail  _postfix      340 Jun  3 08:28 .Deleted  
Messages
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:11 .Drafts
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:11 .Expenses
drwxrwxr-x    12 _vmail  _postfix      408 Jun  4 00:06 .Follow Up
drwxrwxr-x    10 _vmail  _postfix      340 Jun  4  
09:11 .INBOX.INBOX.Drafts
drwxrwxr-x     9 _vmail  _postfix      306 Jun  4  
09:11 .INBOX.INBOX.Sent
drwxrwxr-x    10 _vmail  _postfix      340 Jun  4  
09:11 .INBOX.INBOX.Trash
drwxrwxr-x    10 _vmail  _postfix      340 Jun  4 09:04 .INBOX.Trash
drwxrwxr-x    14 _vmail  _postfix      476 Jun  4 00:12 .Iain
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:06 .Jokes
drwxrwxr-x    15 _vmail  _postfix      510 Jun  4 00:06 .Junk
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:06 .Nessus
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:11 .Postfix
drwxrwxr-x    14 _vmail  _postfix      476 Jun  4 00:11 .Sapphire
drwxrwxr-x    15 _vmail  _postfix      510 Jun  4 00:08 .Sent
drwxrwxr-x    10 _vmail  _postfix      340 Jun  3 16:15 .Sent Messages
drwxrwxr-x     8 _vmail  _postfix      272 May 26 10:28 .ToDos.mbox  
(Dovecot)
drwxrwxr-x    11 _vmail  _postfix      374 Jun  3 23:58 .ToDos.mbox  
(IMAP Account)
drwxrwxr-x    11 _vmail  _postfix      374 Jun  3 23:58 .ToDos.mbox  
(jlbrown IMAP)
drwxrwxr-x    13 _vmail  _postfix      442 Jun  4 00:11 .Trash
drwxrwxr-x     3 _vmail  _postfix      102 Jun  3 23:58  
courierimaphieracl
drwxrwxr-x     3 _vmail  _postfix      102 Jun  3 23:58  
courierimapkeywords
-rw-r--r--     1 _vmail  _postfix      290 Dec 16 14:51  
courierimapsubscribed
-rw-r--r--     1 _vmail  _postfix   394010 Jun  3 17:46 courierimapuiddb
-rw-r--r--     1 _vmail  _postfix   513065 May 25 17:04  
courierpop3dsizelist
drwxrwxr-x  6933 _vmail  _postfix   235722 Jun  4 09:09 cur
-rwxrwxr-x     1 _vmail  _postfix       34 May 26 10:17 dovecot-keywords
-rw-rw-r--     1 _vmail  _postfix   537661 Jun  4 09:07 dovecot-uidlist
-rwxrwxr-x     1 _vmail  _postfix        8 Jun  4 09:09 dovecot- 
uidvalidity
-rwxrwxr-x     1 _vmail  _postfix        0 May 26 09:55 dovecot- 
uidvalidity.4a1b2fff
-rw-rw-r--     1 _vmail  _postfix   111504 Jun  4 09:04 dovecot.index
-rwxrwxr-x     1 _vmail  _postfix  9335808 Jun  4 09:09  
dovecot.index.cache
-rw-rw-rw-     1 _vmail  _postfix    30724 Jun  4 09:11  
dovecot.index.log
drwxrwxr-x     2 _vmail  _postfix       68 Jun  4 09:07 new
-rw-rw-r--     1 _vmail  _postfix      118 Jun  4 09:09 subscriptions
drwxrwxr-x     3 _vmail  _postfix      102 Jun  4 09:07 tmp


Any idea how to get them back?

Same with my Sent emails - only the emails sent since switching to  
Dovecot are there.

Thanks,

James.