I am receiving some very weird errors from the Perl-based UBB code that 
was recently moved to a machine running redhat-7.0 and perl 5.6.0, from 
redhat-6.2 with perl 5.00503. I've narrowed the problem down to the 
following small snippet of code:

#! /usr/bin/perl

$maxfields = 14;


sub OpenFile {
my $FilePath = shift;

my @thisarray = [];
if (-e "$FilePath") {
open (THISONE, "$FilePath") or die( &StandardHTML("OpenFile $FilePath 
failed: $!<p>Check Paths & Permissions") );
@thisarray = <THISONE>;
close (THISONE);
}  else {
@thisarray = "";
}
return(@thisarray);
}

@f = OpenFile ( "test" );
print "count=$#f\n";
print "@f";

while(1) {

        @fields = OpenFile ( "test" );
        $count = $#fields;
        if ( $count > $maxfields ) {
                print "Fields exceeded $count>$maxfields\n";
        }

}


Where the file "test" contains:
1
2
3
4
5
6
7
8
9
10
11
12
13
14


The code will occasionally print out 'Fields exceeded 13>14', which is 
simply ludicrous :)