Do all LCD monitors burn in if it is on screen too long?Are there any manufactures that don't?I already know the secret to fixing them, was just wondering if there are manufactures that don't......I have a 17''Polyview v17e

Yes, LCDs are subject to a type of burn in - technically called "Image Persistence", but understand, the same image must be displayed for hours on end.

See: Avoiding Image Persistence... and Remove LCD image burn-in.