Hi Colin

It crashed immediately when I tried to use it from the zip folder though I did get the 'open' window

then I unzipped your folder into its own folder in my system and tried again ...

Got a pretty blue screen and two windows, 'open' and a debugging window behind it ... after clicking on 'open' the debugger window just kept running and repeating numbers ... on and on and on.

I guess it need a little more work :)

cheers,
eric