not updating viewed Posts correctly

I am wondering why it isn't working.

setup_options.php has

$enableViews=TRUE;

and the code in bb_func_vthread.php which looks like

if($page==0 and isset($enableViews) and $enableViews) updateArray(array('topic_views'),$Tt,'topic_id',$topic);

the "if" is returning false.
This code works:

if($page==0 ) updateArray(array('topic_views'),$Tt,'topic_id',$topic);

I can't figure out why the code is failing.

it's academic, but please help me....

Be sure this setting is not commented.