Bug in the plugin of cluetip in loading the tooltip

Description

I have a view of displaying the field picture of a type of content. Every element is a link declared in the template of this view: print "<a class=\"sticky2\" rel='$base_url/tooltip/book/$row->nid'>" .$field->content ."</a>";
And the script declared the class="sticky2" here is the code :
Drupal.behaviors.cluetip = {
attach: function(context, settings) {
$('a.sticky2').cluetip({
sticky: true,
showTitle: false,
arrows: true,
closePosition: 'bottom',
cluetipClass: 'rounded',
mouseOutClose : true,
positionBy: 'bottomTop',
dropShadow: false,

});
}
}

Problem

When i pass the mouse just above the tooltip(cluetip), it can't be load the content, and if i take away the mouse , it appears empty just for 2 second and it load the content,
My problem consist at displaying the tooltip empty and in passing the mouse above it (the content can't be loaded)
i give you a print screen of this problem