I am experiencing a rather annoying bug at the end of the asylum chapter where I face Irenicus. The fight goes totally as planned but suddenly when Irenicus is "near death" he just stops. You can beat on him for ages without anything happening and you're royally stuck.

I have installed the big bugfix patch from Bioware.

Are all your party members invisible?

If no, have you downloaded the relevant Baldurdash Fixpack?

Maybe it has something to do with hindering Irenicus' spellcasting abilities (miscast magic, insect plague).

No, i'm heading there as we speak.

I forgót the baldurdash adress. Could someone please fill me in?

I couldn't find a bugfix for my specific problem. (I'm not using any kind of invisibility etc) but the problem might be that if Irenicus suffers damage right after turning non-hostile (which he does right after turning near dead) he will freeze in place.

This might mean that I have to refrain from my liberal usage of acid arrows (both the spell and the item) and other continous damage effects. (Jaheira has that club that does continous damage).

Could this be the problem?

Maybe, although I doubt so. You can also try a rematch. ;) If you can beat him once, you can beat him again.

I beat him the first time, but then decided that I didn't want to go directly to the Underdark.