Hi, Ulf. I was able to resolve my problem at last.
I discovered that there were two fonts in my system, identical, with two different names. I believe one was a system font and the other was something I downloaded from daFont--eurostyle was one, and the other name I don't recall. I couldn't for the life of me find eurostyle in inDesign, only illustrator. So I added the typestyle to my adobe library from illustrator and was able to apply the style in inDesign. After that, I could access the font. Strange solution, but that's my workaround.
Suggest you look at your fonts to see if there is another with the same appearance but different name causing a conflict.
Good luck!
al