> I guess it's a dynamic GPX from a php script ; I'd further guess that
> it outputs each track section from an array of points, and your array
> is not being cleared down between track enumerations. Each new track
> extends and incorporates previous ones...

Thank you for saving me from my own poor programming!! You are quite
right, I was not clearing the GPX string between routes. Now works
perfectly

Many many thanks
Dave

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