a black and gray object like a radio button appeared in the upper left corner
of a cell after a cut/paste action. there was a radio button in the original
document next to the text I was copying. when you click on it, the toolbars
go gray, and the object changes like a radio button, but nothing else appears
to happen. nothing happens on right-click. this object obscures part of the
text in this cell.
what is it and how do I get rid of it?