When I use the drawing tool, the lines initially appear on the screen stretching from the point of initiation until I finish the line. As soon as I set the end point of the line, the line itself disappears leaving only the end nodes showing on the screen. I can make the line visible with the "Format Autoshapes..." option. But, when I go there and change the line color from "No Line" to black, the line shows up fat and blurry on the screen.

Is there some setting I need to change?