In this thread someone posted this workaround that has worked for me.  The crashing has stopped.  One time when you get Quickbooks to stay open - go to preferences and uncheck the open to Homepage box.  Then save.  So it is no longer trying to open the Quickbooks Home page.  This has stopped my crashes.  If it goes back to crashing - I also have started to look for alternative accounting software.  Even though I have been using Quickbooks for 20 years.  This problem if not addressed is not workable for my business either.  But for now - the unchecking of the Home Page has stopped the crashing.  Try that.