Horde Webmail

[Sascha Schneider]

Hi List, 

I made my first install of kolab 2.2 from rpm to a fresh Debian 5.
I set up a user whom can login at https://kolabip/admin
I now want to se the horde webmailinterface but can not login with the 
credentials of the user.
If I type the login/passwd horde stays at the first page with no errors or 
warning.
If I type a wrong pwd I get an "User or Password wrong".

Any Ideas??

Greetings from Belgium, Sascha