How to read ebooks from Adobe Digital Editions
I think you'll have to get with the folk at Phoenix. I've never had to continually enter my name and password to read an Adobe DRM'd book before; once I've authorized the device to read the book - it stayed authorized, no further passwords needed.
So, maybe the Phoenix people will have more assistance for you. Sorry - but I've never seen this [and so have to bow out because I truly can't help[. Hopefully, the people at Phoenix can or maybe someone will see this post who also goes to Phoenix and can help.