Enrico Forestieri wrote: > BTW, it is possible to select "mu" as a unit, and this produces latex > errors because mu can only be used with \mskip or \mkern. On the other > hand, mu is most useful in math...
Selecting mu produces errors as well in the text version of the space inset, so this is nothing new. I guess the problem is even more general and appears at all places where a LyXLength is used in text environments. I wonder why the mu unit is available at all for LyXLengths? Georg