02-07-2013, 07:05 PM
Yeah, it's a mess. I played with it for a bit about 6 months ago. It looks like Messages can be signed in to different protocols all at once. Make sure that you have all your accounts signed in (bonjour, AIM, etc etc). I found that I was not signed in to AIM, which is what made my life difficult. As to google and the like, I really don't know. Hopefully some one else here can answer that.