I am getting an error message:
Interface\addons\pitbull\aura\update.lua:366: attempt to index upvalue 'friendBuffs' (a nil value)
Thanks for your help.
What class are you playing, and is this on live or WotLK beta? (If beta, do you happen to play a paladin? This is a known issue due to the removal of salv, see http://www.wowace.com/forums/index.php?topic=14785.0)