Creating emphasised text in a paragraph by:
blah blah blah M-Ce is M-C_ blah blah blah
where _ indicates a space, and then viewing the dvi output
creates the following LaTeX error:
Too many }'s
...to set from Denny's output data \emph{is}}
{\selectlanguage{english}...
You've closed more groups than you opened.
Such booboos are generally harmless, so keep going.
Aside from the fact that LyX views this as an error rather
than a warning, this problem is NOT present if one types
the text normally and then emphasises it, by highlighting
it and then typing M-Ce.
Angus