screensaver

[immortalis <imperfectly home com>]

Hey guys,
I'm tailing a log file on the console, but every 15 minutes or so, the
screen blanks out and i have to move the mouse to get it back. I'd like to
get it to blank at the least every 60 minutes, but would prefer around 120
minutes or more.
I've tried
/usr/bin/setterm -blank 0 and /usr/bin/setterm -blank 60
neither work. I was told by a friend using RH 4.x that the setting could
also be found in a script in the rc.M file, but i was unable to find this
file in /etc/rc.d. I'm using RH 5.1

Any answers would be appreciated. 

thanks in advance!