On Wed, Jul 17, 2002 at 12:33:25PM +0100, Angus Leeming wrote: > > FormPreferences simply removes the converter from the list of converters > available to this session. It cannot, therefore, write this info to file. I > understand that converter supports "none". If, instead of erasing the entry, > it was "none"-d, then that might work.
To delete a converter that is defined in lyxrc.defaults, add \converter "from" "to" "" "" or \converter "from" "to" "none" "" to .lyx/preferences. The preferences dialog does this automatically.