[Dovecot] Squirrel Mail (unknown date) in subject and zero size of messages shown

Hello, I'm having the following problems with a Squirrelmail and Dovecot. with option SERVER SIDE SORTING in Squirrel, only the first page with e-mails is shown in user's inbox, the mails in all the next pages are listed with subject: "(unknown date)" and size 0. The other similar problem, independent from that option (SERVER SIDE SORTING) is: when THREAD VIEW is chosen, we have the same behavior, normal first page and damaged all the others. with option SERVER SIDE SORTING = FASE, and UNTHREADED, everything is OK Has anyone seen this behavior, any help will be greatly appreciated. Thank you in advance :)

P.S. Squirrel's version is 1.4.7 and Dovecot is 1.0-stable