I have an HD7 and an HTC Radar. I was able to watch videos over my bluetooth headphones (Motorola S10HD) on my Radar. I was excited to find out that Mango had fixed it so I tried to do the same on my Mangoed HD7. No luck, videos still play through the phone's speaker as opposed to the bluetooth headphones. So is it a hardware problem, or can the drivers of the two phones be compared and ultimately finally fix this issue for HD7 users?