Removing the "1" from "UserForm has done the trick. I'll play with the formatting next.

Regarding your questions:
1) I have a 3-page "wizard" because it looks like the real thing
2) Entering the data in 3 separate worksheets is a real requirement. The final workbook will have multiple sections (perhaps as many as 30) performing calculations with the key parameters provided by the "wizard"

Again, thanks for your help