do u have one of the original 23" cinema screens...?

No, I have the very latest, the "new" one.

i've only seen that
on a Mac. the new 20" and 23" cinema screens will work natively with any
DVI card,

It doesn't work with my BFG 5600u.


but now that i've just read that last post i'm not sure if it
will support 1920 x 1200.... hmmm.

If by "it" you mean the 23 "Apple Cinema HDTV display, yes of course it runs
at it's native res of 1920x1200.

Jeff B