Thanks, Shellyrae and KimLizzy.
Apparently this is a bug in DIP 9 -- at least in the copy I have.
I open the font and minimize it. Then, I insert a text block, type my text, and select the text to change the font. The font name is in the drop down list, but when I select it the text in the text box in no longer visible. If I go back and select an installed font, poof, the text is visible again.
Since Jenzie pointed out that it works correctly in "insert shaped text", I might try that. I see that the first option under shaped text is a plain rectangle.
I have been installing and uninstalling the fonts I want to use. Of course now that I know someone has installed 1,000's and lived to tell .....
JanetC