Stop screen saver running

[Chris Mason]

I usually leave a user logged in on my backup server in the datacenter so
that my assistant can restart the backup after changing tapes, and monitor
the backups, however, I notice that the screen savers take up to 80% of the
CPU which is not acceptable.  Is there a way I can remotely kill all
screensaver sessions so the screen just blanks or doesn't go into
screensaver at all? 

Chris Mason