Changed group size counting so that it resets to zero after any error, so the next group will always be the selected size. Previously the group size of the next group after an error depended when the error occured, e.g. an error on the 2nd character would cause the next group to be only 3 characters. In the previous version only a comma was accepted. Now the same characters will be repeated, but not in the same order. This is a large change to this session.
Students reading the screen are no longer able to just remember the sequence.
Added screen output if MA is started with an illegal option or improper syntax on the DOS command line. This should help in learning all of MA's options.