1. If I select text from the pulldown list in ComboBox3, the text is not included in the final subject string. If I manually input text into ComboBox3, the text is included in the final subject string.

2. When selecting OptionButton2 (to input "TR" into the subject string... TR is initially shown in the subject bar, but is replaced by "GC" upon hitting CommandButton1.

Both these errors seem like they might be related to a lingering variable which is being used, maybe not correctly defined/cleared (just a guess from my AutoCAD LISP experience.

I'm afraid I am not able to attach the code, which without being able to do so... help will be pretty hard to find. I'll keep trying.