I've replaced the original code by:
use CGI;
my ($q,$INPUT);
undef %$q;
$q = new CGI;
$INPUT = $q->Vars;
As far as Sifmole's statement that I have no understanding of what my previous code did: I fully understood it. I greatly appreciate everyone's help, but I learned CGI using that block of statements, not "use CGI"; consequently, it took more work than just adding "use CGI" in there. For example, I didn't know I'd have to create a new CGI scalar.
Everything works nicely now. Thanks to everyone for your help :)
-Adam
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