"OPEN NEW DOCUMENT" OPENS NOTHING

Hi all.  SW 2017, SP5.0, Windows 7

Problem: under running Solid Works session, "open new document" command turns inactive.  Occasionally and sporadically, after establishing about one to three new documents.  Ctrl+N or File Menu option "New"  or taskbar new icon, all totally dead, no response of any kind.  Regardless of what type of new doc (part, assy or dwg) was last created you still had luck enough.  SW must be shut down and restarted in order to have next one or two new documents created.

Most annoying.  Quite sure I'm not the only offer of this "feature"?

--Herby under the Palm Tree

SolidworksUser Interface