Yesterday I bought my iPod touch 3g from the Apple store. I was playing around with the accessibility features. Before I got home I got a gray screen. You could still open apps and stuff but you couldn't see what you were doing because the screen was gray. So I went back and returned it. They tried resetting it and stuff but it didn't work. So they gave me another one. Last night I realized that this one has a screen problem too. When I lock it the screen is black then I press the home button or the power button to view the lock screen and quickly it flashes white lines across my screen. I tried restoring twice didn't fix it. Any ideas? Please tell me if you have some ideas. Thank You.