I have had an issue watching streaming video in Windows Media Player, but only at higher bitrates such as 500kb or 700kb. This issue is that audio works fine, but the video is very choppy. I see still frames every 4 seconds. Lower bitrates, like 400kb still work. This happened when Vista pushed down the latest Intel 945GM Chipset display driver (126.96.36.1997). I had rolled back to a previous driver and the problem went away. However the constant nagging by Vista to install the latest driver got to me and I tried installing it again. The problem came back. Now when I try to roll back the display adapter driver I am getting errors. Is this Media Player issue common, I haven't found much on it?