When I enter text in a cell, everything looks fine until I exit the cell, when random line breaks/gaps suddenly appear in the text. When I go back into the cell, everything reverts to normal until I exit again. Restarting the computer doesn't help. The only way I can get get rid of the line breaks/gaps is by retyping the entire text from before the break. I have for the most part been copy-and-pasting from MS Word. Help would be appreciated.