[Plugin: NextGEN Gallery] Conflict with superfish

I upgraded to 1.6 and my dropdown menus stoped workin also the effect for prettyPhoto also stoped working.

I got this message from firebug:

jQuery.easing[jQuery.easing.def] is not a function
[Break on this error] return jQuery.easing[jQuery.easing.def](x, t, b, c, d);