Yeah, I've been very unhappy with the bright left 1/4, dark 3/4 of the screen issue. I've tried 2 replacements, with no luck. I contacted Apple Executive Customer Services and the lady helping me did some research. She said one of the top engineers that's "in the know" with Apple LCD's said the iMac is a consumer product and the uneven display is more than good enough for consumers. If I want better I need to get a cinema display and a MacPro. The only thing offered to me was a return of my BTO iMac, which is against Apple's policy. I didn't give her an answer yet, but that's what I'll probably do. It's such a nice machine, but I guess it's not good enough for me in Apple's eyes.