Yes, exactly what Fred and Derek are saying.
In simplest form, make sure harmony is off. Make sure Harmony IS checked in the save dialog. Save Registration #1.
Maybe think of it this way. If the Harmony box is checked, The Registration saves the on/off state of the harmony/appregio. If it is saved as 'on', the Registration also saves WHICH harmony/appregio is set. Pushing Reg #1 Turns on the harmony, and sets the type. If it is saved as 'off', pushing the reg #1 button will turn off the Harmony/appregio. If the harmony button is not checked, Pushing Reg #1 will not change the harmony/appregio in any way.
I actually use this for my church music. I use the text pages to display the lyrics through a projector on to the wall. I save the verses as Reg#1, 2, 3, ext. I always use Reg #8 for the refrain. I find that most of the hymns have room for a verse and the refrain on one text page. So each of the verse Registrations have a text page saved to them with the verse and refrain. Reg #8, I don't check the text box, so it continues to display whatever text was already displayed. I then sequence the registrations as 1,8,2,8,3,8,10. So on the projector, I get:
Reg #1 -- Checked text box -- displays Verse 1, and refrain.
Reg #8 -- Not checked -- continues to display Verse 1 and refrain.
Reg #2 -- Checked text box -- displays Verse 2, and refrain.
Reg #8 -- Not checked -- continues to display Verse 2, and refrain.
Reg #3 -- Checked text box -- displays Verse 3, and refrain.
Reg #8 -- Not checked -- continues to display Verse 3, and refrain.
Reg #10 -- Checked text box -- displays blank text file.
I hope that helps, and wasn't too long winded.
Adam