Just got 2 new Captivates. One of them has a noticeably blue screen compared to the other which is more white. It also keeps going back to the previous screen as if you hit the back button. It is random but happens alot. I did a hard reset but it still happens. I think I am going to exchange that one since it also has the blueish screen. I ordered the phones over the phone from AT&T. Can I just bring it into any corporate store and exchange it? Will they charge a restocking fee for an exchange? Do you think it is reasonable to ask to power on the phone to see if it has a blueish tint and try to find one that is more white?