#16 - Sept. 11, 2010, 12:26 a.m.
Hi Warenpeace,
As others have mentioned this is typically caused by a UI issue. If removing your interface, cache and wtf folders is not doing anything you may need to run the repair utility.
Make sure that you are not reinstalling any addons or any clients that obtain addons for you. If the UI reset has been done correctly, you should see the intro cinematics. Let us know if you have any additional questions.