I think the problem is with your "cookies".

Click this and make sure the answer is 'yes' to the below questions.

http://www.germanlook.com/Forums/mem...on=editoptions

Automatically login when you return to the site? (uses cookies)
Browse board with cookies?

If that doesn't help this read this.

http://www.germanlook.com/Forums/mis...1#clearcookies