I rebooted, and things seem better now. I was finally able to play to the end, as this player did NOT retire, and I gained points. But, I still don't understand why, and I am up 4-1 and they retire, I don't gain points.
On another note, I am annoyed by the increasing number for "new" players, who really are not new players. Most of them user "Player 1" as their name. They clearly have been playing long enough to learn to great serve tricks, and I think that they are starting over as "new players" in an effort to get fast ELO points with the skills that they learned as previous players. Oh well. Lately, many of them get frustrated at losing to me and retire.