I have a 27" flat screen Toshibia analog TV and a Philips Q35 Progressive scan DVD player hooked up to it with an RCA-brand S-video cable. For some reason in bright scenes I've noticed that the picture flickers on DVDs. It happened in Monsters Inc. and I thought it was just the movie. But now I'm watching Saving Private Ryan and it's starting to flicker as well. What's the deal?