Hi, just bought my new macbook a couple weeks back. I recently hooked it up to my Vizio 42" Plasma through a Mini-DV to VGA converter. I'm running the macbook in clamshell mode, and the display is set to 1280x768 75hz. For typical use, things look fine. But quick movements, scrolling, and especially videos seem to have a slight delay to them. As if the refresh rate or frame rate cant keep up. Truthfully, lol its sometimes giving me a little headache. Anyone know how to fix this?