[horde] leftside menu disappears after first change of horde.conf.php

[s.truppe@email.amergy.com]

 Is there an option for turning off the left side menu ? Because everytime i 
make changes to the horde.conf.php file and logout i wont see the pannel on 
the left side (the upper menu doesn't reach the left side). It just keeps 
beeing white... could there be an error because of my local mysql 
installation ? i hope someone here can help me because i realy have no idea 
why this happen... i can login normal but without the pannel on the left side 
(where i normaly see 'Mail')