Create game option still isn't working after attempting everything to fix.. When hovering over the create / join game button, I get the message "a player in your party does not have access to this content"... when playing solo, I get this is the message!
I have taken the following steps to try fixing the problem on my Mac OS X:
-updated my OS to Lion
-emptied my Blizzard cache
-used first aid / repair disk on my hard drive