Hi, i have 2 different MDP -> HDMI adapters. One supports Audio, the other doesn't. Both of them work fine with my Macbook Pro. But when I connect them to the Thunderbolt Ports of my new iMac, the CEC connection between my TV and my receiver doesn't work anymore. Anybody with the same problem? Can someone suggest an adapter which will work with audio and won't disable the CEC connection?