First of all, I love the series so far, and it's really useful :) I do have a question about the smoke simulations though. When I create a smoke simulation I end up with an extremely bright looking simulation, unlike your simulations in the video, which shows a nice difference in intensity of the fire. A screenshot of what I get can be found here: http://imgur.com/lvMApaS . Do you know of a way to solve this and/or does this effect I'm seeing actually influence the result of the simulation? Thanks in advance!