Copy and Paste
 

For whatever reason, I can not perform the simple function of copying and
pasting a formula from one cell to another. In order to do so, I have to do
a corner drag on the cell with the formula. When I select the copy function,
I get the dotted cell perimeter for a split second, then it stops and I'm
unable to paste. I thought it was because I was using a spreadsheet I
generated using Simply Accounting, but now it's doing the same thing in new
spreadsheets. I'm going nuts. HELP!!!