Oh, excellent, I think we're getting there!
I've actually commented out plotSymbolMarginForHitDetection, as it was
giving me a compile error:
error: request for member 'plotSymbolMarginForHitDetection' in
something not a structure or union
As I said I'm very very new to this so I haven't really worried about
it yet, just commented it out... One thing at the time :)
Thanks a lot for your help!
Jerome.