I just purchased a Sony PFM-42x1 Plasma monitor. I hooked it to the cable box with a DVI/HDMI cable. It is hooked to the tape player with a S video cable. When I first turn it on in the evenings the picture is inverted (a negative image, not upside down). I push, every button, select every option in the menu, cycle between inputs and use curse words in multiple languages and nothing seems to help. After about 5 minutes it seems to fix itself (or did I finaly fix it?). Once it starts working it works fine for the rest of the evening even if I turn it off and turn it back on.