Okay, I deleted my AIM account from Proteus, added it back in, and now it's working again. Woohoo!

__________________
--
"No left turn unstoned."

(PowerBook 15" 1.5 GHz/80/1.5 GB, eMac 1 GHz/80/768 MB, SuperDrive, 250 GB FireWire HD, Lexmark Z65 printer, Epson Perfection 1200U scanner)