Sounds to me, and I could be wrong, that you may be encountering probs. similar to mine, Melody: compatibility between computer (its "brain" or capabilities) and applications.

I'm glad everything's working for you now; I know how frustrating it was for me, especially knowing all is installed and connected properly. (I did the "test" print, too, and still, darn printer would not do a thing until I opted for a diff. bit browser).

Whatta pain, huh?