If you get this error, it generally indicates that you have really long
lines in your latex file.  The easiest way to fix this is to hit M-Q in
each paragraph.  You can also do this:

	Hit  ctrl-space at the beginning of your text.
	Go to the end of you text and type  M-x fill-region

To avoid problems with this in the future, see the stock answer under
Emacs: How to set AUTO-FILL-MODE by default.