Toshiba sd6109c - can't get DTS to work

Anybody knows how to get the Toshiba SD6109C DVD receiver's DTS to work. I have enable the Audio out select to "normal" and turn everything to off. When I put a DTS DVD into the drive and select DTS audio, I get no sound and the receiver shows I am in PCM stereo mode. TV shows the DTS demo routine but no sound and display shows I am in DTS 6 channel sound. Any help is appreciated. One more problem, when I put in a Dolby digital DVD such as Mummy, the receiver still shows PCM digital. Receiver works in PCM digital mode and all the sound effects works. But no Dolby digital and DTS audio. Seems like the receiver is not able to detect others audio format except PCM digital stereo. I need help. __________________ Not sure about the Dolby Digital out, but a DVD needs to be DTS encoded for it to work. Right now, there aren't too many DTS DVDs.