Hi everyone, I recently built a HTPC running Windows 7 and Windows Media Center. It is connected to my Sony AVR (STRDH520). The playback I see is choppy. I'm not sure if I need to change anything in Windows 7, such as the hz of the monitor... The TV is a Sony XBR9 (http://store.sony.com/p/KDL-52XBR9/en/p/KDL52XBR9#specifications). Seems like the video plays well for a few seconds, then appears to drop frames... so I see smooth playback, then jerk forward. Any idea what I can do? I don't think it is a codec issue (Shark's 007 codec pack).