Well, shoot. You nailed it. It was a layers issue. I was trying to draw on a layer that I'd hidden a few days ago. Thanks a heap; I appreciate the help.
Peace,
Dave
I've tripped a dwg specific option in DS, and have been unable to find it to reset it. I've been using DS for about a week. Until earlier last evening, using the various drawing tools was straight forward, and intuitive. While trying to solve something else, it appears I created a new problem...