I have a question. My 16GB Black iPhone 3G has light seeping through a crack on the left. Bought it from AT&T. When I hold the phone in my hand and squeeze it together to seal the light, I hear it crack as if the screen wasn't on all the way. Every time I go to the AT&T stores, I notice their 8GB Black iPhone on display always feels so sturdy. The screen is attached very well and the screen makes no cracking sound. The screen is on like it's supposed to be. My question is whether or not people have light seeping through their screens and makes the same "cracking" sound. Please note the color and capacity of the iPhone. If you have an iPhone that feels as sturdy as the 8GB iPhones on display, please note your phone's capacity and color as well.