Printing grid does not work

There is no content, just headings. The headings are perfect and not stretched. I don't know the version because that has been removed from Excel but I think it is 2010. I added xxxx in every field and the grid got worse. Now the first 25 lines don't have horizontal grid lines and lines 26-44 do. Columns A-D don't have grid lines in all rows. But columns E-I do. It is not consistent as many times it is variable as to what doesn't get the grid lines. In fact if I re-print every thing changes. I have used two printers with no success.