Index missing in maxima info files in latest Ubuntu package.

Hi,

I'm not sure if this is the right place to report this but here goes.
The info files from the Ubuntu package maxima-doc ver:
5.25.0-1~ppa1~natty from repository LP-PPA-blahota-wxmaxima-natty are
faulty.  Inside emacs, clicking on "Function and Variable Index" yields
the message:

no such node or anchor: Function and Variable Index

This suggests that either the index is not there or it is incorrectly
referenced. Doing Alt+F12 within a maxima file in emacs to get help
yields the same message.

Incidentally, help still works correctly in wxMaxima, but I guess it
uses a different system to find things.

Cheers,

Bernard.