Roundcube rc1 not displaying subject, attachements, body

[tmarkus]

After logging in, roundcube displays a correct folder list on the left side with the correct number of unread messages.
The message list also contains the right number of items, but the subject and sender are both empty (no subject)(for nearly every message). Opening the mail still shows nothing except a date on which it is sent. Though some emails do display properly, they are all text-only automated emails. All the emails in my inbox are text only. I suspect that there is some kind of encoding issue, but I cannot track it down.

-PHP 5.1.2
-SunOS 5.10
-Mysql 5
-uw-imapd/dovecot (tested on both, same problem)

I searched the forums, the internet and the bugtracker, to no avail sadly.

[tmarkus]

I solved the problem by removing the iconv calls which returned empty strings by utf8_encode()