Johann,
> Whats the deal with this? Mozilla seems to somehow recognize
> that I had Netscape configured with this
Yes, there is code to migrate you correctly if you used movemail.
One known bug with movemail migration is #64640.
> but greys out the get message button
Hmm, it works for me. Select your inbox. Does the "get message button"
become enabled?
In 4.x, did you use internal or external movemail? If external, see #56671.
If internal, start a bug on this using http://bugzilla.mozilla.org
> and doesnt allow me to create a movemail-based account?
Correct. see bug #56669
-Seth