Not so stupid after all

Well, I have been looking through the datasheets for the LCDs and I can find no mention of negative contrast so I deceided to wire up the red LCD to see if it fired up, and it did.
So I wired up the origional one that I thought was negative contrst and I get the 2 bars that you usually get when they boot, but it stays on the screen.
This leads me to believe that this LCD is munted.
Considering the fact that Crystalfontz actually sent me the wrong part, as I had ordered a 20x2 not a 20x4 and the one they have sent me doesnt even work, I am emailing them now to see what they are willing to do about it.
My bet is nothing considering I am all the way over in NZ but worth a shot otherwise I have basicly blown money.
Heres the sexy red one.... looks alot better than in the pic.

And heres the busted green one