Open Office Spreadsheet won't print borders of columns. Help.

My Open Office will not print the borders on the columns that I have made. I created a simple spreadsheet, and made it with four columns the length of the page, and a header for each column.
When I check the Print Preview, it looks alright, but, when I print, nothing comes up.
I have Windows 7, an HP 4200 Printer.

What am I missing?


OO.o version?