I recently purchased a PS3 for my first adventure into Blu-Ray. I have the PS3 hooked up to my Sony receiver model STR-DE885 via the optical audio connection. Whenever I try to run a Blu-Ray movie through my surround sound the sound cuts in and out. It acts like it looses the signal all together. I first thought bad cable but it's fiber.....it either works or it doesn't. Is the PS3 putting out more sound than my receiver can handle? Anything else I should check? Help!! I want to hear that new THX surround sound demo at the beginning of Indiana Jones through my surround sound!!!