Deus Ex PC HDMI-TV

[Ragequit]

I was playing DX:HR, and it occurred to me, that what's better than playing DX:HR on your laptop? Playing it on your laptop while watching the game on TV.
Well my hopes were quickly dashed when I discovered that when I start playing DX:HR, the video is fine but the sound becomes really choppy from the TV. Really choppy. Is there a fix to this or is it a known problem? I'm just wondering if anyone has done this before and what they might've done to solve it.