Re:It does indeed work, but artifacts do exist. (Score 1)

My setup: DP533, stock GeForce2MX running primary monitor, Radeon 7000 running secondary. I did the same and removed that line thereby activating QE on both monitors.. Really decent speed boosts with any overlay windows and I've found NO artifacts whatsoever. Column view works perfectly.

Maybe it depends on the card/system?
-tetrax