I am sure some of the problems mentioned are occurring in my code, because I used "switch" as a variable in several of my util files, and used "Continue" in many places.
Following Tomasz's advise to replace these reserved words will make things right. In all my formulas I just replaced "switch" with "switchVar" and "Continue" with "Contin" and they all now seem to work fine with 4.91.1. Sorry I didn't jump in here right away and save all the trouble, but I am traveling. Bill
