ok, this is really weird.....

With EditPolygons>PolySculptTool I cannot get reflection to appear for either a polygonal or nurbs object.

With EditNurbs>SculptSurfaceTool I can get reflection to appear for a nurbs and polygonal object. There is a CATCH however: in order for reflection to appear when I have a polygonal object selected, I am forced to select a nurbs object FIRST, bring up the NurbsSculptTool options window, select polygonal object with selection tool, then switch back to the sculpt tool (which appears at the bottom of the tool box).

This is very strange.....