I have a fair number of bad pixels with long exposures. I tried all the reported fixes, but never saw a difference. The long exposure N.R. never really helped much either. I used to use DPP and P.S. Elements and it was irritating having to remove all the red, blue and purple pixels. Then I got Lightroom and I never saw them again... removes them automatically in the RAW conversion process (I will see them for a second while the shot opens, but they disapear as it fully rendors the jpeg view). At first I had mixed feelings about the software doing this action without me controling it or approving it or the results. However, I soon got over it when I let go of my control freak tendancies and realized LR did a good job and saved me a lot of work.