If I understand your question correctly, yess, I have dragged MC from one
screen to the other. It goes "funny" as it does the transition, but I don't
think it has anything to do with analog vs. digital. I think it's just the
video card switching from one screen to the other.
MC doesn't know or care (AFAIK) what kind of display you're putting it on.
That's handled behinid the scenes by the video card, which also doesn't
really give a flying fig what type of display you've got on either input.
You could have a CRT hooked to a DVI adapter (like I do), or an LCD panel
hooked to a VGA output, and the card shouldn't care.
Anyway, that's my $0.02. I haven't had an issue moving any program from one
screen to another, either way. I have noticed some stuff looks better on
one display or another, but that's just the way the two displays seem. The
text is sharper on the LCD's, and images look better (in general) on the
CRT's (IMHO). I use dual displays (CRT and LCD) at both the office and at
home, and have for a few years now. Hope it works for you! I can't imagine
not running this way anymore.