Chase acquired the UA Mileage Plus visa cards from First Bank and has now changed their web site.
To access my account on the Internet (talking about good old fashioned browsing here - forget about Quicken for a moment) I had to re-enroll as an on-line user.
Once I did that I had to open Quicken, disable transaction downloading, reset it for Chase, and begin anew.
Everything turned out O.K.
Doug