The two codes you -gmaxey & Guessed- provided me , are working very effectively!

When I applied them to more forms, especially with a few boxes, they work perfectly!
I'll have to make do with it right now.

I need to take the time and try to learn more about the "preparation" of the form for the code , all in order to make intelligent use of the useful codes that you have given me.

Thank you very very much for your warm hospitality and helpful explanations.