Anyway, I can add the PyBuzz machine okay, but this is what I get when I click on it:

If I right-click and choose parameters:

If I then close Buzz with the PyBuzz machine still added:

Originally, I found that all machines using their own GUI threw similar errors, but installing Visual C# 2010 Express cleared up the problem for everything apart from PyBuzz. I rolled back to Buzz build 1393 (on the logic that it came out round about the same time as the PyBuzz build I'm using), and it works fine. So could it be a C#/PyBuzz issue? (I'm running .NET 4.0 and I have Visual C++ installed too.)
Help and advice gratefully received as always - thank you
