Hi everyone. I have a Gateway DX4885, running Windows 8, and I am trying to connect it to my TV with an HDMI cable. When I do this, I get a picture which looks very good. However, I do not get any sound. When I click "Playback Devices" on the speakers, I see no HDMI option. On "Device Manager," under "Sound, video, and game controllers," I see a "Realtek High Definition Audio," but it appears to be working correctly. Thanks in advance for any help!