Kornel, I notice that loading up your document gives an error

Unknown token, lyxsize_type, skipping.
Unknown token, 1, skipping.

You should "fix" this with

sed 's/lyxsize_type/lyxsize_kind/g' < ColMathXLII.lyx > temp
mv temp ColMathXLII.lyx

I know that you can now load the document fine, but you may have others where 
this occurs...

...of course, I still can't load the bugger ;-)

Angus

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