spiders just the first page

[Leitmann]

Hello!

I'm using the following environment:

MySql-Version : MySQL 5.0.18
PHP-Version : PHP Version 5.1.2
phpdig-Version : 1.8.8

I installed phpDig (correctly I think), but wenn i try
to spider https://www.ifr.ing.tu-bs.de phpDig
spiders just the first page, finds no links and stops.

Can someone help me, please?
Thanks Leitmann