preview-latex: Activating preview-latex
1.2 Activating preview-latex
============================
After installation, the package may need to be activated (and remember
to activate AUCTeX too). If preview-latex is installed via the Emacs
package manager (ELPA), activation should be automatic upon
installation.
The usual activation (if it is not done automatically) would be
(load "preview-latex.el" nil t t)
If you still don't get a "Preview" menu in LaTeX mode in spite of
AUCTeX showing its "Command", your installation is broken. One possible
cause are duplicate Lisp files that might be detectable with '<M-x>
list-load-path-shadows <RET>'.
Info Catalog
preview-latex: What use is it?
preview-latex: Introduction
preview-latex: Getting started