Hi,
Go to js > prettyPhoto > js, then open jquery.prettyPhoto.js. Find the code
(function($){$.prettyPhoto={version:'3.0'};$.fn.prettyPhoto=function(pp_settings){pp_settings=jQuery.extend({animation_speed:'fast',slideshow:false,autoplay_slideshow:false,opacity:0.80,show_title:true,allow_resize:true,default_width:500,default_height:344,counter_separator_label:'/',theme:'facebook',hideflash:false,wmode:'opaque',autoplay:true,modal:false,overlay_gallery:true,keyboard_shortcuts:true,changepicturecallback:function(){},callback:function(){},markup:'<div class="pp_pic_holder"> \
Replace it with
(function($){$.prettyPhoto={version:'3.0'};$.fn.prettyPhoto=function(pp_settings){pp_settings=jQuery.extend({animation_speed:'fast',slideshow:false,autoplay_slideshow:false,opacity:0.80,show_title:true,allow_resize:false,default_width:500,default_height:344,counter_separator_label:'/',theme:'facebook',hideflash:false,wmode:'opaque',autoplay:true,modal:false,overlay_gallery:true,keyboard_shortcuts:true,changepicturecallback:function(){},callback:function(){},markup:'<div class="pp_pic_holder"> \
Regards,
Ismael