cron with gnuplot

[Nadi Itani]

Hello,

I am trying to run a cron script to generate a plot at regular
intervals. 

Here is my crontab:
# DO NOT EDIT THIS FILE - edit the master and reinstall.
# (- installed on Mon Mar 31 13:19:09 2008)
# (Cron version V5.0 -- $Id: crontab.c,v 1.12 2004/01/23 18:56:42 vixie
Exp $)
* * * * * /home/nitani/plot_test.g > cron.log 2> cron.err
 
After this runs I, cron.log and cron.err are both 0 bytes. If I change
the filename to an incorrect name I do get a file not found error in
cron.err. So, I know the script is running however, I don't get any plot
out. If I run the script from the command line it works fine. Please
help.

Thanks,
Nadi Itani
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