[Therion] Date before 1900 error - but where?

[Andrew Atkinson]

Hi all

I could really do with some help searching for a problem.

In the data

http://www.cave-registry.org.uk/svn/CheddarCatchment/

(downloadable svn repository)

Trying to run any of the thconfig (well I've tried most) files leads to 
this error

configuration file: LongWoodValley.thcfg
reading ... done
reading source files ... done
preprocessing database ... done
therion: error -- automatic declination calculation before 1900 not 
supported, please specify declination explicitly
writing xtherion file ... done

This is not a useful error. This data set use to work, I've produced 
lots of surveys from it.

It seems to indicate a date in the error message. Although grep has 
shown up a couple that I needed to fix for other reasons, none have 
shown dates before 1900. So I have no idea how to track down this error

What else should I be looking for? Running therion with -d does not give 
any further information

Help!

thanks

Andrew