djmori, I guess that's not it, when I try to open a conversation window, all my contacts (even online ones) disappear, altough the status says I'm online. Is this what you are experiencing mafr?
Still haven't found how to fix it, tried logging out, rebooting, re-installing Adium, but so far nothing worked, guess I'll have to stick with 0.89.1 for now...
Edit: Forgot to say trying version 1.0 (not Beta) on a 12" iBook running OS X 10.4.8