Thanks, Sancho.
That got me part of the way there - the DVD drive now plays audio CDs without using the patch cord.
But, still no sound fom DVD movies. I get the picture and everything else about the drive seems functional.
I've been poking around in the BIOS settings for the drive. "Type" is set to "auto", PIO is set to 4, and ULTRA DMA mode is set at 2.
Do you think it has anyhting to do with these settings? Where can I find out more about what they are and how to set them correctly?
Thanks!