[horde] double in delete folder

[steven.TSE]

Hi, i'm using Horde 2.2.3 + imp 3.2.1 on a qmail + courier IMAP.  I found
that everytime i delete a message with imp, it will have twice in trash
folder!!  Notice i have selected "move delete message to delete folder
instead of mark it as delete".  Moreover, it wouldn't happen with mail
clients like Outlook express, so it should be IMP's problem.  Please advise,
thankyou very much!

Best Regards,
Steven