Replacement LCD screen is white after installing

Hi all, I'm working on an 80 gig iPod Classic for a friend of mine. The original LCD screen's backlight gave out, so we decided to replace it. I followed the directions to replace the LCD carefully, and now it just gives me a white-ish grey screen. I've tried a hard reset several times, and a manual restore through iTunes (it sees the iPod perfectly).

I figured that maybe the connections weren't seated properly, so I reseated them very carefully, and still had the same problem. I even removed the connection to the new screen and connected the old screen with the out-of-order backlight, and the screen functioned properly (without the backlight, of course). It plays music just fine, too. Does anyone have any ideas, or maybe I got a defective replacement part? Thanks!