Andrew Parsloe wrote: > What puzzled (& puzzles) me is that the warning doesn't arise with > 2.1.4, nor when 2.2.0 is installed.
This is strange. If you want you could try out whether the error happens as well if you start platex.exe manually. If yes, then it is definitely a MikTeX problwem, if not, then there must be some interaction with LyX which I do not understand. Georg