The following example, from a discussion I was having with Uwe, demonstrates a problem in the calculation chain for some parameter expressions. It looks like the constant value is not being treated as a signed value. I'm guessing other operators are also effected. A simple example that is similar to the one Uwe and I were discussing is attached. He had a loop which I choose not to put in the example since that could give an infinite loop in V0.8 until we make it NI.