A document that has previously printed standard gridlines, now prints very faint gridlines. In page set up, gridlines is checked, draft is not checked. In options, Automatic is selected for color and black is the auto color. If I send the worksheet to another computer on the network it prints the standard gridlines. What has happened to my Excel!?? I tried restoring all the defaults by running Detect and repair but that didn't solve it either! HELP!