6.3.6. Missing $ inserted

You will probably get tons warnings like this one:

! Missing $ inserted.
<inserted text> 
                $
l.17245 ...b/a/bsd/2000/09/06/FreeBSD_Basics.html}
                                                  \endNode{}\endSeq{}\endNod...
I've inserted something that you may have forgotten.
(See the <inserted text> above.)

You can see them in the standard output, as well as in the .log file that is created automatically (if you don't see any .log file, maybe lyxtox currently deletes it - check the code). They mean that TeX tried to correct you , because it saw some character that is used in the mathematics mode and thought you might have forgotten to switch. So it inserts a $, which toggles math mode. If this is not what you intended (it will most probably not, if your .tex file is created through the procedure described here), then your only salvation is to escape the character that triggered this behaviour. This means that you may have to escape

• Slashes (/) in URLs, at least when they separate two numbers (not tested)

• Underscores (_)

• Carets (^)

• and generally everything that may have a math interpretation in TeX/LaTeX/LyX

FIXME: This needs testing! Till now, I didn't resort to escaping - and stil things work remarkably well...