Embedded images turn blank/black when any activity goes on in the file.

All,

Using Draftsight 2015 x64 SP3.  when I insert a reference image, it inserts and displays appropriately.  Unfortunately any activity in the drawing document causes the image to blank out. If I select it and choose one of the options in the properties window will re-display it, but it will turn blank/blank again with any further activity.

This is on a Win64 box with an Intel HD4600 craphics card running Windows7 professional.

Help?

 

chris