It seems to be worst for 720p, though is noticeable even on 1080p.
The source is just fine when I view it on my regular computer over DVI, so it seems like I should be able to do something other than just audio shift in my media player. I think it's something along the lines of "input lag" coming from my HTPC.
The two players I use are Media Player Classic - HomeCinema and XBMC (with ffdshow for dts/ac3 passthrough) .
Has anyone got any suggestions for me? Thanks