BJHenry:
Are you saying that even if you send 'a' the code for 'b' is run?
Maybe you would have more success if you listened to people here and answered some of their questions.
You obviously have not yet helped with very many questions here or you would realize how often the symptoms are described in a very fuzzy way.
All you needed to say in Reply was "yes".
Have you carefully studied the link I gave you?
Apologies to everyone. Please ignore the above.
I had mistakenly thought that @BJHenry was the OP for this Thread. (Senior Moment)
...R