I just installed a Liteon DVD drive Model # SOHW-1633. I cant get audio to work when playing a DVD. If I put an audio CD in it works fine. But if I play a DVD, no audio. The MB I have is an Asus A7N8X Deluxe. The audio CD's play without plugging an audio cable into the back of the DVD player. Do I need to use an audio cable to get DVD audio? I have tried both plugs on the MB that the users manuel says are the CD1 or the Aud1 and nothing. Im wondering if those plugs are enabled by default through BIOS? Ill be checking that also. Any other things I should check?

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