Perhaps PATH is set up differently in backticks than in system. I can't say I've ever encountered that. If you haven't already done so, you could try and set up $ENV{PATH} in your script or explicitly do it in the backticks command ... 
my $result = `PATH=/foo/bar/bin:/baz/bin:. $cmd 2>&1`;

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bluto

In reply to Re: Inconsistent system call from backticks vs system() by bluto
in thread Inconsistent system call from backticks vs system() by Tanalis

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