k2 I upgraded to version 2.2 everything ok.but now in articles where there is a photo gallery when viewing the image there are two pop up for viewing.parameter image gallery pro "Popup engine for image galleries" is set with "high slide"How can I eliminate the error?thanks

In administering the plugin works correctly.

shows the HTML of the administration page, the pictures are as code:
<li class="sig-block">
<span class="sig-link-wrapper">
<span class="sig-link-innerwrapper">
<a href="http://

---

.it/media/k2/galleries/73/20.9..JPG" class="sig-link highslide" style="width:150px;height:120px;" rel="highslide[gallery4cb43fe2d6]" title="<b>Navigation tip:</b> Hover mouse on top of the right or left side of the image to see the next or previous image respectively.<br /><br />You are browsing images from the article:<br /><span class="sig-popup-caption">VI Accademia Estiva Europea a Roma</span><br /><br />" target="_blank">

<img class="sig-image" src="http://

---

.it/plugins/content/jw_sigpro/sigpro.transparent.gif" alt="Click to open image!" title="Click to open image!" style="width:150px;height:120px;background-image:url(http://

---

.it/cache/jwsigpro_cache_a76437112520.9..jpg);" />

<span class="sig-pseudo-caption"><b>Click to open image!</b></span>
<span class="sig-caption" title="Click to open image!">Click to open image!</span>

</a>
</span>
</span>
</li>
the front-end code is the following
<li class="sig-block">
<span class="sig-link-wrapper">
<span class="sig-link-innerwrapper">
<a href="http://

---

.it/media/k2/galleries/73/20.9..JPG?ml=5&mlt=system&tmpl=component" class="nn_squeezebox sig-link highslide" style="width:200px;height:160px;" rel="{handler:'iframe',size:{x:600,y:400}}" title="<b>Navigation tip:</b> Hover mouse on top of the right or left side of the image to see the next or previous image respectively.<br /><br />You are browsing images from the article:<br /><span class="sig-popup-caption">VI Accademia Estiva Europea a Roma</span><br /><br />" target="_blank" rev="ml">

<img class="sig-image" src="http://

---

.it/plugins/content/jw_sigpro/sigpro.transparent.gif" alt="Click to open image!" title="Click to open image!" style="width:200px;height:160px;background-image:url(http://

---

.it/cache/jwsigpro_cache_a76437112520.9..jpg);" />

<span class="sig-pseudo-caption"><b>Click to open image!</b></span>
<span class="sig-caption" title="Click to open image!">Click to open image!</span>

</a>
</span>
</span>
</li>
what changes is the value of the class
administrator - class="sig-link highslide
front - end - class="nn_squeezebox sig-link highslide
but can not find how it is generated

Help!!
thanks

THE PROBLEM IS PLUGIN Modalizer I changed the effect so as not to use the mootools library