Hey Clay, thanks for answering.  I set the nano to wireframe...that's cool, never did that before.  Also set the priority to high (default must be medium).  Didn't make a difference.  Sometimes it showed a figure and sometimes just the dashes.

One thing that I found was a tick for showing the render time when it's done. I selected that so now it pops up with a render time window so at least I know it's done rendering.