Are you using both an 800 and a SSP? (like 861 or 568)

If so, be sure to select the "800 DVD Present" or "Meridian DVD Present" in the SSP setup, like Geirh suggested.

You will also need to hold down the function key to use the arrows for DVD playback. (if you selected the "... DVD Present" option.

If you have 861, 800, and DSP speakers, you will also need the 512/212 if the 861/800 are not in IR range.

Stacey Spears
Co-Creator, Spears & Munsil High Definition Benchmark, Blu-ray Edition and Lighthouses of the Pacific Northwest.