I just bought a Trendnet 200Mbps AV Fast Ethernet Adapter to hook to my HR23-700 and my PC. I'm using Tversity with mediashare. For the most part, everything seems fine but I am getting some stuttering issues when playing back some movies and I would like to eliminate the possibility of the powerline adapter being the problem. I have some full length movies in MP4 format that play back fine on mediashare. However, I have some casio camera movies (.mov) that stutter. Is there a EASY way to test the Quality/Speed of the lan connection between the PC and HR23?