Hi Jerry,
thanks for the data. The audio engine logs show some unusual patterns, namely periods of 30 seconds or even longer where it seems nothing is happening. In order to analyze this further I would like to ask you to install some special tool and do a Windows performance recording with it. That would be really fantastic, though it is a little bit of work. But please follow the instructions in this thread and send me the data via e.g. Drop Box or other file sharing service.
Thank you very much