Cannot connect to X server

[Olivier Lecarme]

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In GNU Emacs 21.1.1 (alphaev6-dec-osf4.0f, X toolkit)
 of 2001-10-22 on uranie.unice.fr
configured using `configure  --prefix=/usr/local/GNU/emacs-21.1 
--with-x-toolkit=athena --without-tiff'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: fr_FR.ISO8859-1
  locale-coding-system: iso-latin-1
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

This problem seems to occur when Emacs 21 is called from a very busy
network link. Although the X authority is correctly set, everything
occurs as if was not. Here is an example:

uranie(~)40: emacs21&
[1] 4489
uranie(~)40: emacs: Cannot connect to X server presto:0.0.
Check the DISPLAY environment variable or use `-d'.
Also use the `xhost' program to verify that it is set to permit
connections from your machine.


[1]  + 4489 exit 1     emacs21
uranie(~)40: xhost
access control enabled, only authorized clients can connect
uranie(~)41: xhost +uranie
uranie being added to access control list
uranie(~)42: emacs21&     
[1] 4493

This time, after explicitly authorizing the computer, it works. In
other cases, this is not enough.

Recent input:
M-x r e p o r t - <tab> <return>

Recent messages:
Loading mail-mime-setup...done
gnus-mime-setup is not found.
Loading emh-setup...done
Loading mime-setup...done
Loading eword-encode...done
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Loading places from /u/profs/ol/.emacs-places...done
Unable to load color "darkblue"
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