[AUCTeX] Missing sub/superscripts intermittent

[Alex Stark]

When, in the example that follows,
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
is two-colour ("&" and "\\" are different), subscripts display
correctly.  When \mat is in one colour and {A} in another, the sub/sup
appear as empty boxes (missing font).  However, if the mouse is used
to select a region, scripts in the region (re)appear in all cases.

Loading a large file seems always to generate this.  However, with the
test example, it is necessary to cut, reload, paste, and then wait for
some re-highlighting for the effect to appear.



Begin example file--------------------------
Cut this bit, save, reload :::
\begin{gather}
  \mat{M} =
  \begin{bmatrix}
    \mat{A} & \mat{B} \\
    \mat{C} & \mat{D}
  \end{bmatrix}
  \\
  \intertext{then the gyration with respect to the corresponding index
    vector $\vec{a}$ is}
  \biggyrate{\mat{M}}{\vec{a}} =
  \begin{bmatrix}
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
    \mat{C}\mat{A}^{-1} & \mat{D} - \mat{C}\mat{A}^{-1}\mat{B}
  \end{bmatrix}
\end{gather}
::: and paste back in


\begin{gather}
  \begin{bmatrix}
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
    \mat{C}\mat{A}^{-1} & \mat{D} - \mat{C}\mat{A}^{-1}\mat{B}
  \end{bmatrix}
\end{gather}

\begin{gather}
  \begin{bmatrix}
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
    \mat{C}\mat{A}^{-1} & \mat{D} - \mat{C}\mat{A}^{-1}\mat{B}
  \end{bmatrix}
\end{gather}




\begin{gather}
  \begin{bmatrix}
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
    \mat{C}\mat{A}^{-1} & \mat{D} - \mat{C}\mat{A}^{-1}\mat{B}
  \end{bmatrix}
\end{gather}



\begin{gather}
  \begin{bmatrix}
    \mat{A}^{-1} & -\mat{A}^{-1}\mat{B} \\
    \mat{C}\mat{A}^{-1} & \mat{D} - \mat{C}\mat{A}^{-1}\mat{B}
  \end{bmatrix}
\end{gather}
End example file--------------------------











System: Ubuntu + emacs21 + auctex

Startup message:
Unable to load font
-misc-fixed-medium-r-normal--11-81-100-100-c-0-iso8859-1 [4 times]

Package: auctex
Status: install ok installed
Priority: optional
Section: tex
Installed-Size: 2300
Maintainer: Davide G. M. Salvetti <address@hidden>
Architecture: all
Version: 11.53-1
Depends: debconf, debianutils (>= 1.7), emacs21 | emacs-snapshot, make

GNU Emacs 21.3.1 (i386-pc-linux-gnu, X toolkit, Xaw3d scroll bars) of
2005-03-04 on terranova, modified by Debian
Package: emacs21
Status: install ok installed
Priority: optional
Section: editors
Installed-Size: 5852
Maintainer: Rob Browning <address@hidden>
Architecture: i386
Version: 21.3+1-8ubuntu7
Replaces: emacs21-nox







Unable to load font
-misc-fixed-medium-r-normal--11-81-100-100-c-0-iso8859-1 [4 times]


Emacs  : GNU Emacs 21.3.1 (i386-pc-linux-gnu, X toolkit, Xaw3d scroll
bars)
 of 2005-03-04 on terranova, modified by Debian
Package: AUCTeX 11.53

current state:
==============
(setq
 window-system 'x
 LaTeX-version "2e"
 TeX-style-path '("style/" "auto/"
                  "/usr/share/emacs21/site-lisp/auctex/style/"
                  "/var/lib/auctex//emacs21/")
 TeX-auto-save nil
 TeX-parse-self nil
 TeX-master t
 )

-- 
Alex Stark