Ok, thanks for the response and help, but after trying that and checking to see which .NET Framework I had installed, I've come to the conclusion that your app is not going to run on my machine, for whatever weird reason that may be. Which, I must add, is disappointing for me as I really like the idea of your work.
I'm not entirely sure what the issue is, especially if the app runs on most others' machines, so I can only conclude there's something my end that is blocking or crashing the file. Unfortunately, it means I'm going to have to give up and maybe try at a later version in future :(
Thanks again for your help.