[imp] New mail are unvisible

[mail@berata.fr]

Hi all,

I have problem with some account where IMP claimed there are new mail in Inbox, 
but do not display this mail in IMP interface. The mails are still in the 
~Maildir/cur folder but are unreadeable in IMP.

How can I fix this problem ? Or can somebody tell me where the problem comes 
from ?

Thanks

José HERBRECHT