Original post by: dhuskey81 ,
There are two possibilities: 1) The screen is warped, (Manufacture defect) * Would explain why when you press down on parts of it the lines go away. Your re-aligning the internals to make a solid connection. 2) Faulty Digitizer, (Manufacture defect) * Same as the first reason, but it is generally caused by the hardware IO’s chip giving a crappy signal. Firm bet is on number 1 though. Call the manufacture and see if they still have it under warranty, if it is not, you can replace the screen cheap.