xterm-mouse-mode clicks further right than ~ column 100 result in menu

[Mark Aufflick <mark-emacs@aufflick.com>]

Hi all,

This is something that has bugged me for years and I can't take it any more :)

I use xterm-mouse-mode a lot on many platforms (linux, solaris,
macosx) and across many emacs versions (20.* up to cvs head) and see
the following behavior.

Click events work as expected over the full height of any window size,
but click events further right than about the 100th column (seems to
vary) result in the menu showing (same as if you had clicked in the
menu bar). This happens for clicks in a buffer, on the status bar,
minibuffer.

Various googling and searching this list archives hasn't turned up
anything that looks relevant. Can anyone confirm if this is known
behaviour?

Thanks,

Mark.
-- 
Mark Aufflick
  contact info at http://mark.aufflick.com/about/contact