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Davidfor,
To be expected since it still thinks it's in the previous chapter. Somebody just forgot to increment a common pointer or variable somewhere.
When you consider how many variables are being accounted for, and used in different operations and dialogs I can see how it'd be easy to miss without testing routines based on variable dependencies every time you changed a module.
My biggest project to date was in real time control with a GUI front end on PC based hardware, multiple concurrent real world processes via multi-threading and semaphores, shared variables and structures, all written in C running over DOS and later Windoze, several hundred KB of hand typed code, and believe you me, it was a good thing that it was a solo effort or things would have been far worse! At least I was the only person making changes, no having to constantly check what somebody or several somebody's or teams were up to.
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