I don't know what I did, but the last few columns on my screen have lost
their gridlines. I have tried tools--options--view--and have checked
"gridlines" but still, a few column gridlines are not visible on my screen.
I think it is the location on the screen (last few columns on the right) and
not specific columns (H through K) because when I right-arrow across the
columns, the ones on the far right of my screen are always the ones missing
gridlines. Any thoughts on how to get them back? Thanks!