[Mediawiki-l] blank screen after login

[Arthur van der Graaf]

When I login into Mediawiki, I get a blank screen. When i change any
variable in the url, i'm logged into mediawiki and everything seems to
work fine.
Anyone familiar with this problem?
I'm using IIS on windows2000, mediawiki 1.6.8., php 4.x and mysql 4.x

You would make al lot of people here happy with the right answer.

Thanx,  Arthur van de Graaf