Multi-colored dots on screen
52 inch Samsung Mod LNT5265FX/XAA, purchsed Oct 2007. Has happened twice so far. When TV is turned on milti-colored dots appear on screen. You can view the cable/and/or the DVD image, but the bluish/pinkish dots are all over the screen. Turned off TV then back on, and they disappeared. Has happened twice. Any ideas? ?Does it need repair? Samsung support says there is no firmware ukpdates for this model that woud correct the problem.