no data echo in fields
 

I have two spreadsheets. On both, all of the sudden the data in the
spreadsheet cannot be seen. If I click on a cell box, the data is at the top.
I can click on the top and the cell will fill with the data. As soon as I
click another cell the data goes away.
The only change I have made is to install Crystal Reports on my computer.
Any ideas or thoughts would be very helpfull.