This worked.  I was using QB Pro 2013 on a 7-yr-old laptop.  I downloaded the program onto my new Dell Precision Mobileworkstation 7750, and the navigation menus and scrollbars were miniscule.  In the Check Register, the splits menu (Recalc, Close, etc.) was crowded and unreasonable to use.  I followed these instructions, and the nav menus and scroll bars, etc., are now scaled properly.  As noted, the text is a bit fuzzy, but manageable.  Now, my problem continues to be that the program keeps crashing.  :(