Arthur,
Thank you. That worked great for the number row of keys that had only three cahracters on each. BUT I must have accidentally hit something else because now it doesn't work anymore :( Now nothing happens when I press a key at the same time as Ctrl and Alt. I have no idea what I changed.

Art, Thanks for your suggestion. I tried the keyboard options. Couldn't find anything about this there.

Bobad, Thank you. There is no CD with it. There is some kind of assistant that comes up but it seems to be more for troubleshooting problems, not explaining how thew heck to use the provided hardware.

Thanks for trying, guys,
rags