[imp] some folders are not shown

[Worns Urstmann]

since yesterday, some of my imap folders cant be shown. for example my inbox 
and the horde/imp mailinglist - subfolders are not opening anymore! i did not 
change anything in my system. some other folders like "trash" and the "sent-
mail" are working ok. also some other mailing lists folder ist still working. 
when using outlook i can open all folders without a problem.

using horde/imp cvs dated a week ago

thanks