not tabs shown - JS error

Hi there,

I get this error on my tab-page in future :-)

Uncaught TypeError: Object function (a,b){return new D.fn.init(a,b)} has no method 'Event' ui.core.min.js:9

My setup:
views 3
Panels 6.x-3.10
jQuery Update 6.x-2.0-alpha1+7-dev (2012-Jan-20)
Tabs (jQuery UI tabs) 6.x-1.x-dev (2011-Feb-25)
Panels Tabs 6.x-1.x-dev (2012-Jan-06)
jQuery UI 1.7.3

Any hints?