[imp] problems with saving mail to sent box (imap)

[Chris]

Hi there,

i got some problems with my imp installation (4.0.4 @ 3.0.9 horde).
all emails sent over imp are not saved in the sent folder of the remote 
imap server.

in my prereferences i selected the send folder for saving sent mail, but 
this selection is not saved. every time i call the prereferences again, 
there is no folder selected.

who can help me ?

(excuse my bad english)