Unfortunatley your phone is dying, I have a Samsung E700, its about 16 Months old, about 4 months ago my screen did the same as yours has, after my lines went i was left with a very bright display, which drains the battery very quickly, I looked on the web for a solution and found that its quite a common thing with Samsungs clam shell phones, apparently its to do with the connector between the keypad and the screen, my camera no longer works either. Luckly i'm up for a contract renewal in a month so will be getting a new phone, hopefully the Sony Ericsson K750i will be out by then.