after seeing before launch that there was a backlight issue, I have been looking at my phone and though it was just when I was texting and having the text window scrolled up. But low and behold there is an ever so light grey bar all along the top edge of the screen...yeah yeah yeah I know it's nothing major, but with them having had backlight issues I'm worried my phone could just take a crap on me..should I take it into AT&T and see what they do/say?