Thank you! Yes, you'd got the right idea. I used the QDK and the resulting code put this into the startscript.
font <Times New Roman>
displaytext <intro>
font <>
It does exactly what I wanted it to.
For the benefit of anyone else needing to know - in the QDK:
[list]1 Click on Game - properties - script
2 Edit "When the game starts"
3 Add command - Print - change the font.
4 Give the name of the font - click OK
5 Add command - print - display a text block
6 Choose from drop down - intro/win/lose - click Ok
7 If you wish to return to default font repeat items 3 & 4 but leave font blank[/list:u]
Frank