I went to a local camera class and I found out that I have a setting on my camera to take 3 shots in AEB. I've been wanting to get a good HDR pic and almost all the time, my clouds came out blurry. The reason for this is, I'd take a pic then change my settings to lighten my exposure then do it a third time. During the time of adjustments, the clouds would move. Photomatix would align the buildings or trees but not the clouds. All you have to do is go into AEB on the camera under settings and it takes 3 pics one right after the other, can't wait to try it out tomorrow.