Hi! I cannot challenge or ask for a rematch lately. There is always a message saying "(Member) is not available for any challenges". This appears even if the member IS available. What could be wrong? Thanks for any help you can give.

That message appears when their challenge settings are set in such a way that the game you are sending them is over the limit they have set. For example, mine is set at 20, if I have 19 games going currently, you would be able to send me a challenge, if I have 21, you would get that message if you tried. My suggestion would be to send the player you are looking to challenge a message and ask them to either change their challenge settings or to send you a challenge, so that you can accept that.

Thanks, Baseballfan. I was worrying I might have a virus or something.

do titled players automatically protect themselves from challenges because they are never available for challenges