Thanks for the suggestion. I downloaded a Profile Inspector from color.org and it says their an error in the file, so perhaps that's it. If I could find a real person at canon to talk to I'll try with them.
Something else unusual about this. When I right click on the file name the top item on the list that comes up is "INSTALL". When I click on it nothing happens. Some of the other profiles have "UNINSTALL" in that location implying that they are installed, yet some that work fine also say "INSTALL". This used to be so simple, download, unzip and drag and drop.
THanks,
Ted