What happens when you run
ksh -c "$path/startexp.pl http://www.perl.com/download.csp" by hand in UNIX?
If you're having problems with that - check to see what the url is in the Perl script
Can you run "mozilla http://www.perl.com/download.csp" from the command line? Hardcoded in the Perl script?
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It's sad that a family can be torn apart by such a such a simple thing as a pack of wild dogs