Hi. Wondering if others are having issues with some small squares appearing randomly and blinking when scrolling or accessing the memory. It seems to appear once in a while and disappears as soon as I change the screen and come back to it. It's definitely not a stuck pixel and it doesn't appear during movie or photo playback. My guess is that the display driver is causing some momentary glitches. Luckily this seldomly appears and restoring the iPhone using iTunes didn't fix this problem. Wondering if I should try to exchange it. Please post if you have similar issues. Thanks.