Template shift to the left after login

Hello,

I have the strange problem: After login on the frontend the complete template shift towards the left. I think it has something to do with the user panel layout. Has anybody a solution?

http://www.sc-terschelling.nl/testsite/index.php

Username: test
Password: test

Thanks in advantage,

best regards,

Volkmar de Vries

Hi

This is a problem of validation. The wrapper_main div is closing to early. Check the content of the articles.