Mention Tex superscript font issue.

diff --git a/etc/PROBLEMS b/etc/PROBLEMS
index e23dde604644487d54858fcb741c35946ef0d678..fe8304e9d88bf38049d2d29efd0da2bb5cc6db64 100644 (file)
--- a/etc/PROBLEMS
+++ b/etc/PROBLEMS
@@ -858,6 +858,18 @@ gives the appearance of "double spacing".
 To prevent this, turn off the Exceed's "automatic font substitution"
 feature (in the font part of the configuration window).
 
+** Subscript/superscript text in TeX is hard to read.
+
+If `tex-fontify-script' is non-nil, tex-mode displays
+subscript/superscript text in the faces subscript/superscript, which
+are smaller than the normal font and lowered/raised.  With some fonts,
+nested superscripts (say) can be hard to read.  Switching to a
+different font, or changing your antialiasing setting (on an LCD
+screen), can both make the problem disappear.  Alternatively, customize
+the following variables: tex-font-script-display (how much to
+lower/raise); tex-suscript-height-ratio (how much smaller than
+normal); tex-suscript-height-minimum (minimum height).
+
 * Internationalization problems
 
 ** M-{ does not work on a Spanish PC keyboard.