[horde] Blank Page After Login

[Otto Stolz]

Hello Markus Braun,

you have written:
> When i try to login with my username and password over the imp auth,
> then i logged in but the page is blank.

Cf.
<http://wiki.horde.org/FAQ/Admin/Troubleshoot?referrer=FAQ%2FAdmin#toc2>.

Good luck,
   OS