Hi Lewis,
the lines are there because I have not yet purchased Nebulosity. It places the lines on the image until you enter a registration key. Still trying to decide whether or not I want to fork out $80 for it.
Or are you referring to the wiggly blue lines in the image attached?
Andrew, I just chose that temperature arbitrarily. I will push the temp down further tonight. Maybe try -10 degrees...
Thanks for your speedy reply gentlemen...