found it...

The key to this functionality is performing a separate search for each range of multi-valued attributes. I was attempting to pull ranges 0-1499, 1500-3499, etc. all in the same search (which doesn't work).

  
###  BEGIN code added to the paged callback sub
foreach my $var (@attr_list) {
     if ($var =~ /;range=/) {
           ### $var will look like this --> "member;range=0-1499"
           ($var,my $range) = split /;/, $var;
           ($junk,$range) = split /=/, $range;
           my ($first,$last) = split /-/, $range;

           ### if $last eq "*", indicates this is the last range incre
+ment, and
           ### we do not need to perform another supplemental search
           if ($last ne "*") {
                my $range_diff = ($last - $first) + 1;
                my $increment =  $last + $range_diff;
                $last = $last + 1;

                my $push_line = $var."|".$last."|".$increment."|".$sub
+_obj->dn;
                push(@supp_srch,"$push_line");
           }
      } ### if $var matches range pattern

###  END code added to the paged callback sub
[download]

The following code accomadates lines being added to @supp_srch from the secondary searches. The $last variable isn't really used below. That was included just so I could test my simple math in the callback sub code above. I added this block right after my inital search

foreach my $line (@supp_srch) {
     chomp($line);
     ($att_val,$first,$last,$dn) = split /\|/, $line;

     $attributes = ['cn','displayName','groupType','description', "mem
+ber;range=${first}-*"];
     my $mesg = LDAP_PageSearch ( $ldap, "(&(objectclass=group)(!(obje
+ctclass=computer)))", $attributes , "$dn" );
}
[download]