Andre, thank you, thank you, thank you! However, the new scheme appears to produce an extra, unnecessary set of red braces. Try the attached, 13x file with lyx 13x and with current cvs.
The good news is that the latex exported by both versions is identical: \newcommand{\Vector}[1]{\boldsymbol{#1}} $\Vector{V}_{0}=V_{x0}\Vector{i}$ -- Angus
trial.lyx
Description: application/lyx