Thanks!

THere's just one problem: It doesn't work for me. :-(

Any suggestions? Maybe I've got a bad library somewhere?

> ./graphtest.pl 
Not a GD::Image object at ./graphtest.pl line 26
> perl -mGD -e 'print "$GD::VERSION\n"'
1.33
> perl -v 
This is perl, version 5.005_03 built for i386-linux
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"Non sequitur. Your facts are un-coordinated." - Nomad