Dear Gurus,
I have an odd issue with org-mode, which I'm hoping people can help with.

Background:

I recently decided to declare Emacs bankruptcy, and started building a
fresh new Emacs.

To do this I pulled a copy of the source from github, built it and then
started on my initialisation files.  As much as possible I have been using
built in customisations or I have also built the extensions from github
code.

I keep a folder in home called 'emacsLisp' which I populate with .emacs and
a group of subject based files (emacsLatex.el, emacsExperimental.el etc)
which I link in from .emacs.  I then have a soft link to .emacs in the home
folder.

The latest thing I have added in has been org-mode, and as before, I have
pulled it from source and built it using 'make autoloads'

On my home laptop org-mode works as expected (I have a minimal
installation, using org-bullets and it timestamp when a todo is completed,
but I haven't gone hog wild yet).

However, with the same code on my work computer when I am writing text in
org-mode and the cursor reaches the end of the line and should wrap I get
an error that flashes up in the buffer at the foot of the screen.

The error message reads:

org-element--cache-find: avl-tree--dummyroot accessing a non-avl-tree-

Google has failed to find an answer.

I have tried installing org-mode from the package manager on my work
computer, but the problem persists.

Any thoughts  gratefully received

Richard
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