I have a denon 5803 which i love but the on screen display has stopped working. everything else works just fine, called denon and they said to to reset the processor which i did, but it didn't fix my problem. however it did create a problem, it set my all inputs back to default and i can't assign any inputs. took to denon authorized service center and they found the problem. i need a new video card, problem is they don't make parts for the 5803 anymore. anybody know where to get parts for the 5803. help!