Computational Physics can be frustrating sometimes.... Just realized that my past eleven weeks of work has been entirely invalidated due to single error in my simulation inputs. Arrrg. :grumpy: :grumpy: :grumpy: :grumpy: On the upside, I think I've got the process down now, so its just a matter of rerunning everything. Its gonna be a long week. Moral of the story: Even if you have twenty different input files, all generated automatically by another program that you wrote on the fly to make life a little easier, check them all by hand. I forgot to add 1 to a single number in a single file. Bah! :grumpy: Ok, I feel a little better now.