I've just finished the beholder's quest and when emerging from the sewers Sir Twa...(or something) tells Anomen it's time to be judged. I go emediatly to the hall, talk to every one and nothing happens. When I leave and sleep Anomen will wake me and tell me he has to go to the Hall...I go and nothing happens!?!?!

Hmm...I remember walking in, and getting stopped at the front door, and Anomen was told to enter, and he invited me to accompany him. Then, we were led to the person in charge of it all.
I do not know why you would not get that same treatment. Have you talked to the door guard?
(Note: I spied in on the converstation with the guy hitting on the chick before going in. Did any of that happen???)

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http://www.dewa.com/animated/7.gif
Larry,
Loyal guardian of the OHF
Devoted member of the Ironworks
Only member of the Elite Bodyguard to Rikard (the fool that takes the bullet)
Ertai's back-up
Memnoch's chief look-out
Member of the Ancients club

Maybe your reputation is too low.(don´t know if that affects your judgement, but it may be a reason)Did you slay some innocent people recently? Like kids and women?

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-UCANTZEECALIFORNIAWITHOUTMARLONBRANDOSEYEZ-

Did you kill those guys his father wants you to kill??
If so, he wont be knighted at all.
Otherwise wait a couple of days, from when Anomen asks you to go to the High Hall, and then return. The story should then pick up...dont really know why.
But thats the way it happened with me.