I see the problem
So glad you showed those examples, I got it immediately. I had changed the file name of the connection file, and dreamweaver set it up correctly, but then I had just cut and pasted the content out of the original working connection file. I was blind to the fact that the names on the left side changed also (they are similar, after all...)
original working file that I copied:
$hostname_connProRes = "localhost"; etc.
my new should have been:
$hostname_connNewProRes = "localhost";
Thanks again for the rescue.