[ajaxurl is not defined] problem

Hello all,

I have a problem with my blog since today. It keeps telling me that ajax URL is not defined. Yesterday everything was working fine and I didn’t change anything since.

Here is what I get:

Ligne?: 81
Caractère?: 2380
Code?: 0
URI?: *****/wp-content/plugins/wp-minify/min/?f=wp-includes/js/l10n.js,wp-includes/js/jquery/jquery.js,wp-content/plugins/nextgen-gallery/shutter/shutter-reloaded.js,wp-content/plugins/nextgen-gallery/js/jquery.cycle.all.min.js,wp-content/plugins/nextgen-gallery/js/ngg.slideshow.min.js,wp-content/plugins/wp-comment-remix/replyquote.js,wp-content/plugins/wp-cumulus/swfobject.js,wp-includes/js/wp-ajax-response.js,wp-includes/js/wp-lists.js&b=blog&m=1298503043

Could it come from Nextgen gallery ?

I have tried to disable wp minify but still the same problem. So It must me from somewhere else.

From firebug I get this:

var getQueryParamValue=deconcept.util….List.process();return this}})(jQuery);

Thanks !