Video lags behind audio - Help

I'm hoping our experienced members can help provide a fix for my problem - namely:

I hooked up my first ever home theater last evening and the video noticeably lags behind the audio on concert DVDs.

Components:

Sony DVP-S9000ES

Cary Cinema 6 Pre/Pro (Toslink digital audio input feed)

Bryston 9B SST amp

JM Lab Utopia in-wall loudspeakers

Yamaha DPX-1300 DLP projector (component video input feed)

Any and all troubleshooting suggestions are deeply appreciated.

John