I have just installed Lion and bought a external monitor for a bit more screen real estate when working at home. The monitor is a Samsung P2770HD i have plugged it into my macbook through HDMI using the Moshi mini display to HDMI. I can get a perfect picture when i set the monitor to extend my Macbook however when i change the sound output settings to the monitor there is still no sound... The speakers are fine on the monitor as i have tested them with my playstation, also i have the newest MacBook Pro (2.7GHz i7 8GB of RAM) that supports Audio out with HDMI. Any ideas on what i am doing wrong?