I'm sure you guys know this...but just in case you dont: make sure that you have the same patches installed (and if any, the same expansion plus its patch) and have about the same framerate for the MP to work properly
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Melusine, High Queen of Fluffies, Archbabe of the Order of the Holy Flame and the Laughing Hyenas, &
Official Entertainer Elf of the BG2 Bar
Your voice is ambrosia