Sylpheed hangs at creating IMAP-account

[globox]

I wanted to try sylpheed but I cant create a new imap-account!

I did this: Fresh install of sylpheed 0.9.4. Starting sylpheed, then comes the email-account dialog. When I finally click ok at the account dialog sylpheed hangs and gives an endless list of the error:

Sylpheed-WARNING **: iconv cannot convert UTF-7 to ISO-8859-1

Any ideas?

[globox]

Am I the only one with this problem?
Same effect with sylpheed-claws. When I found a solution I'll post it.