Attached is a small test file. Try to view the DVI and lyx core dumps. Here's another one. Put the offending "T" in a note inset. You can now view the DVI, but if you highlight the note and "cut" it then, again, lyx core dumps.
Angus
#LyX 1.2 created this file. For more info see http://www.lyx.org/ \lyxformat 220 \textclass article \language english \inputencoding auto \fontscheme default \graphics default \paperfontsize default \papersize Default \paperpackage a4 \use_geometry 0 \use_amsmath 0 \use_natbib 0 \use_numerical_citations 0 \paperorientation portrait \secnumdepth 3 \tocdepth 3 \paragraph_separation indent \defskip medskip \quotes_language english \quotes_times 2 \papercolumns 1 \papersides 1 \paperpagestyle default \layout Standard \begin_inset FormulaMacro \newcommand{\bmath}[1]{#1} \end_inset \layout Standard \begin_inset FormulaMacro \newcommand{\Tensor}[1]{\bmath{#1}} \end_inset \layout Standard Given a (2D) tensor \begin_inset Formula $\Tensor{T}$ \end_inset , its ... \the_end
