Well, it seems like I am having problems with my iPhone 4 and wanted your opinion about them. First, the left middle of the back plate when ever touched clicks even when warm or cool. Second, in the dark or low light when the screen is on you can see light through the headphone jack and through the hole where the micro-sim is. Last, I have a scratch about a inch long on my screen that happened because of keys. Considering these problems and imperfections should I take my iPhone back for a replacement from Apple? Has any one else experienced any of these problems? Thanks for the help. P.S. Now the middle right side is starting to click too.