Emacs mode font-lock strange bug

[Silas S. Brown]

Hi,

I'm using the Debian "woody" package of Lilypond 2.0.

A strange thing happens when I load a .ly file into
XEmacs21.4.  Pressing C-Space to set the mark (i.e. start
highlighting the region) results in the region NOT being
highlighted, although it is still active and functions OK
(it's just not visible).  However, clicking and dragging
with the mouse DOES highlight correctly.

This non-appearance of the region persists even AFTER the
lilypond buffer has been killed (it's a problem in ANY
buffer).  I have to exit and restart XEmacs to get it back
to normal.  This is really annoying.

I've had a quick look through the .el sources and can't see
anything obvious, although lilypond-mode.el does play with
the "mark" quite a bit - it might be something to do with
that.  (Is there any way to check which global variables
it's changed?)

Thanks,       Silas

-- 
Silas S Brown, St John's College Cambridge UK http://www.cus.cam.ac.uk/~ssb22

"The rationality of our universe is best suggested by the fact that we
can discover more about it from any starting point, as if it were a
fabric that will unravel from any thread" - George Zebrowski, 1994