[iamfried]

Yes, I have the same problem. I had a friend over the other day and he noticed it in a matter of minutes that it was dropping frames.
Depending on what you are watching the more frames it drops - or atleast the more you can notice.
I haven't determined what the problem is yet, but I am doing quite a bit of trouble shooting and investigating. If I find something I have to change to get this better, I will post.