Bought a Philips 42 in plasma tv w/ambilight in Jan 07. about 3 months ago started seeing bright blue color on left edge of screen, it has gotten worse and is about 3-4 in over into the tv screen. i have tried different HDMI cables and component. It does this on the cable box and dvd player. Also if program has black bars on side of picture it happens just when the color starts after the black bars.