Congrats on beating it. I was stuck on a puzzle for some time last night. Decided I'll just stop for now, and look at it tomorrow. It was like puzzle 20/22 in the single player. Has 3 lasers, and two reflection cubes. I easily sat there for a good 20+ minutes cursing at it. Ask Tater and Tall. They were both in a party with me. With the puzzle still on my mind while I was trying to sleep, it wasn't until then that I finally figured it out. I kept trying to sleep, but it called to me, so I got up and went and did it. I'm not looking forward to the rest of these puzzles.
Also, I like the avatar as well. While he was the best part of that movie, I also liked him in Rules of Attraction.