Looking at the screen snipet below, I have applied protection to this sheet. Prior to applying protection, I unlocked all of the yellow cells as this is where the user would enter info. It is also necessary for the user to be able to make changes to values in the combo boxes and option buttons. I have right clicked on every option button, Format Control | Protection | and unlocked... Same with the combo boxes. Still, I am unable to make changes to those forms while the sheet is protected.
The sheet is of no use if I can't protect it and still make choices using the forms I've put on the sheet.