Top menu bar missing

Glad to join this community.  I have bee running the latest Draftsight free for the last 6-8 months on my Mac Pro and now the top menu bar is missing.  Its the one that shows Draftsight, Edit, Insert, Format, dimension etc...  When I open a drawing it only shows "Draftsight".  I have removed the program and re-installed it a couple of times.  Can't find anything on the web to fix this problem.

When I close the drawing  it only shows Draftsight, file, view and help.

How can I get this to show again?   Secondly I also bought the professional license and when I go to Help there is no way to activate the free version to a professional version.

Any help is appreciated.