ruler-mode breaks shell scrolling

[robert]

In GNU Emacs 21.3.50.21 (i686-pc-linux-gnu)
 of 2003-03-22 on jailhouse.chezmarshall.freeserve.co.uk
configured using `configure '--with-x-toolkit=gtk''

Important settings:
  value of $LC_ALL: address@hidden
  value of $LC_COLLATE: en_GB
  value of $LC_CTYPE: en_GB
  value of $LC_MESSAGES: en_GB
  value of $LC_MONETARY: en_GB
  value of $LC_NUMERIC: en_GB
  value of $LC_TIME: en_GB
  value of $LANG: en_GB
  locale-coding-system: iso-latin-9
  default-enable-multibyte-characters: t

(but maybe it's not meant to be used in a shell buffer?)

M-x shell
M-x ruler-mode

and then a command with plenty of output, my cursor doesn't stay at eob as
I would expect. If the commend takes some time to complete you can keep on
moving the point to eob and it keeps on moving away...

Robert