I have a Sony 725 DVD player connected via a digital co-axial cable to my recently purchased Sony 940DB AV amp. The DVD player to TV link is via a high quality Scart cable. On several DVDs I have noticed dialogue sync problems, which is usually cured by stopping the disc and restarting. I have had to do this 2 or 3 times on two films recently (Enemy of the State and Human Traffic), if its relevant - this occurred on the first layer (ie first half of the film), coincidence? I never had this problem when I played DVDs straight through the TV, ie no external amplifier. Any ideas? Andy P.