I'm getting more and more dust collecting under my screen in the top left corner. I plan on taking my phone in tomorrow to the local Verizon store. The current phone I have is a refurb that was mailed to me because my first model was a lemon (couldn't receive any carrier signal no matter what). I was told I have a one-year warranty on the refurb when it was sent to me. Just want to know if anyone has any advice since it seems most are having no trouble getting theirs replaced, but some are experiencing difficulties. So, any thoughts/advise??