This is an irritant I've been living with for years. Its never been critical or I would have mentioned it here before now. I guess I'm just more irritable than usual today!

I get random behaviour in most of my forms. Sometimes I can copy a field's content to either another field on the same form, or to an external application. Sometimes I can copy the contents from an external application to an editable field in one of my forms.

Other times I can do one but not the other. Other times neither. No obvious rhyme or reason.

Suggestions?