I got my iphone 4 about 2 weeks ago, and I have some serious issues with it. For one, I have a dead pixel on my screen. It's been there since day 1. Also, I have a huge yellow spot in the middle of the screen. I heard that it was just the glue drying, but they acted like it would dry within a day or two... I have had it for about two weeks, and it's still not gone! Will the local At&t store replace my phone, or will they blame me for the pixel issue and not replace it? Thanks!