ok, i just bought the toshiba sd4960 from craig t. i have it all hooked up properly i think. optical for audio and svideo for video, but when i put in my beck dvda and my flaming lips 5.1 disc, all i get is the same menu i got before on my normal dvd player. i can't even get to the dvd-a stuff. i'm guessing i'm doing something wrong. anyone have any tips?