After flashing beta8.1 on my Captivate and running like a champ, discovered issues with the proximity sensor, muting and hanging calls. After running proximity tests with SGS tools, sensor was working as it should. Voice dialing finally is working after flashing Cog 2.2, but that was causing the sensor to not trigger when placing phone to my ear, or at least not fast enough. There is a delay between voice dialing and when the actual phone app starts, and after that it takes to long to kick. Not using voice dialing unless I'll be on speakerphone. In the end, voice dialing was the problem. Back to normal now
, instead place a few direct contact shortcuts in one of my home screen for quick access, quicker that way. Anyone experience the same? Hope this helps someone with the same issue.

