Hi All, I have an iPhone 4 with no warranty and the touch has stopped working on the screen. I've done full restores and updates but the touch (digitizer?) on the screen never works. Going to try changing the screen - Just wondering if anyone knows if the screen replacing also has the digitizer as part of the assembly? The screen itself looks great, just the touch doesn't work. Thinking of this: http://www.ifixit.com/iPhone-Parts/iPhone-4-Display-Assembly-GSM-ATT/IF182-003 Thanks!