I've connected my new Macbook to my PHILIPS HDTV (37PF7320) using the mini DVI - DVI TO HDMI cables. The video quality is perfect.

However, I'm running into problems getting the audio out of the Macbook and into the TV. According to the TV manual (information later confirmed by Philips tech support), the way to do this is to connect the laptop to the digital audio input (coax / SPDIF) on the back of the TV and then instruct the TV via the SETUP/SOURCE menu that audio for the HDMI input is coming in through the digital audio input. I did so using a cable which I bought from RAM ELECTRONICS. The system does not allow me to post the URL but here's the cable's description:

Digital Audio Ready 3.5mm (1/8") to RCA Cables, 75 ohm, Belden 1505F Cable. Also works as analog Audio mono cable.

However, I don't get any sound at all. I tried this same cable to connect my DVD player to the digital audio input in the TV to make sure it's working and it works perfectly.

I don't know what else to do. I'm thinking that perhaps the OPTICAL DIGITAL output in the Macbook is not compatible with the COAXIAL DIGITAL input (S/PDIF) in the TV. Does anybody know if that is the case?

Can anybody offer a solution?

Thank in advance,

curuxu