I know people on this list are fed up with my tribulations trying to get
LyX to write in Latin5, but this may be of more general relevance.
I'm using lyx 1.3 qt under Mandrake 9.0 and KDE. For some reason, LyX
will ignore previous settings and stop writing Latin5 characters. Doing
an etch-a-sketch on my system, e.g. switching from English to Turkish as
default language, solves it for a while, but then it goes back to its
Latin1-only state.
Robin