The digital audio output from my Toshiba sd-231e is lagging behind the display on all my DVDs. It is connected to a Philips LX-700 Digital Home Cinema System via coax (I also tried it with an optical connector). I would use this as an excuse to replace the DVD player with a writer but that is no good if it is the external receiver that is to blame and I tried a friend's Samsung on with my speakers and that had the same problem. There are no lip sync issues when I run the sound throught the TV and if I put the TV volume up AND put my surround sound speakers up atthe same time they echo. Is this normal? Does anyone know what I need to replace?