Can't stop grid lines from printing on drawing

I was making flow charts by sketching directly onto a drawing (.slddrw). To help me line thing up,  I made the grid visible by going to Options>Document Properties>Grid/snap and checked the "Display Grid" box.  The flow charts do not have a solid model associated with it.

Now when I print any drawings, the grid shows up, even though the "Display Grid" box is unchecked.  These drawings have a solid model associated with them, and the "Display Grid" box had never been checked.

What do I need to do so the grid is not printed out on any of my drawings?

SolidworksDrawings And Detailing