[Dovecot] out of disk space notification

[David Weilers]

Hi Dovecot readers,

My server (squirrelmail) provides me with the following error-message 
when selecting a mailbox (trash):

ERROR : Could not complete request.
Query: SELECT "Trash"
Reason Given: Out of disk space

The user is not over quota but for some reason dovecot still thinks this 
to be true. Can anyone give me a hint for finding a solution for this 
problem.

I have installed: dovecot-0.99.10.9-2.0.rh9.dag

Thanks in advance..

David