Hi Paul,
Don't know what checking all of the boxes means, whether in
  your print driver
  or in Excel

Excel does not do grayscale,   so I presume you mean you set
your printer -- so it would not be an Excel question (as far as I know).
Most laser printer are black so if that is the case you should not have
to do anything as it should be your print driver that prints grayscale.

In Excel     file, page setup,  sheets,   B&W  option will change
to black and white only -- no shades.
   http://www.mvps.org/dmcritchie/excel/colors_print.htm

You can probably access your print driver in Excel from
File,  Page Setup, Page,  Options
 You may have a print driver option to   print with black ink only

---
HTH,
David McRitchie, Microsoft MVP - Excel    [site changed  Nov. 2001]
My Excel Pages:  http://www.mvps.org/dmcritchie/excel/excel.htm
Search Page:        http://www.mvps.org/dmcritchie/excel/search.htm

"Paul Krueger" <paulrkrueger@gmail.com> wrote in message news:1137698631.683776.72910@o13g2000cwo.googlegroups.com...