yes....
When you enter a tourney, and you quit (for whatever reason you didn't finish) the program still thinks you are in that tourney and won't let anyone bother you. You need to start another game and this time "Quit and Save" or "Quit and Don't Save"..
It's all because you hit the big red X on your way out.
Chances are, your buddies did, too. Either that, or they have changed EVERYONE to NO ONE under the AVAILABLE tab.
have a nice day.