Hi Lawrence,

Dunno what those would be... I'll give my Standard Answer for
diagnosing odd things on the screen: when you right-click on it,
what do you get? (And you may then see a "Display" button that
can be clicked on, and then an "off" radio button.)

My guess would be some odd user-added dataset, though why it's
getting turned on now and wasn't before is a bit of a mystery.

-- Bill