This just started happening, and I can't figure out what's causing it! Gray grids and lines (like lined paper) just started showing up in the background of my Word documents. It's ALL documents - new, old, downloaded, everything. I haven't had a chance to see if they show up when printed, but they're very distracting and I can't work with them there! I've taken to doing all of my writing in notepad for the time being, it's so bad. Rebooting didn't help.
Any help anyone can give would be greatly appreciated!