jumping ampersands?

[Eric De Mund <ead@xxxxxxxxx>]

People,

Why do some ampersands placed after single-word commands
(e.g. "% ooffice &", and "% xmms &") jump one space to the left (e.g. to
"% ooffice&", and "% xmms&") upon my hitting the enter key? I've been
using Zsh for about 15 years, now, and I believe this is the first time
I've ever observed behavior that I didn't explicitly call for or impli-
citly (such as with options) call for.

This ampersand jumping:

1.  is intermittent;
2.  only seems to occur with single-word commands (i.e. the two-word
      command "% ooffice foo.sxw &" remains as is upon my hitting the
      enter key);
3.  only occurs in local rxvt(1) rather than remote ssh(1) shells (both
      of which use identical ~/.z* startup files);

My environment--along with pointers to all my ~/.z* startup files--is:

/-----------------------------
% uname -a
Linux patagonia 2.4.18-bf2.4 #1 Son Apr 14 09:53:28 CEST 2002 i686 GNU/Linux
% cat /etc/debian_version
3.1
% echo $myrxvt_ARGLIST
-fg rgb:00/00/00 -bg rgb:dd/93/5d -g 80x48 -fn 7x14 --cutchars \<\> -si \
+sk -sl 3000 -sr -st      -vb
% echo $ZSH_VERSION
4.2.5
% setopt
allexport
autocd
noautolist
nobeep
nobgnice
correctall
extendedglob
histignoredups
nohup
ignoreeof
interactive
interactivecomments
longlistjobs
markdirs
menucomplete
monitor
nonomatch
pathdirs
pushdsilent
shinstdin
zle
% lynx -dump http://www.ixian.com/ead/tmp/
                             my Zsh startup files

     * [1].zlogin
     * [2].zlogin.aux
     * [3].zlogout
     * [4].zshenv
     * [5].zshrc

References

   1. http://www.ixian.com/ead/tmp/.zlogin
   2. http://www.ixian.com/ead/tmp/.zlogin.aux
   3. http://www.ixian.com/ead/tmp/.zlogout
   4. http://www.ixian.com/ead/tmp/.zshenv
   5. http://www.ixian.com/ead/tmp/.zshrc
% 
\-----------------------------

Thank you. I'll happily assist in any way I can in the debugging of
this.

Eric
--
Eric De Mund
email: <ead@xxxxxxxxx>