[jQuery] fadeOut in Opera& IE

[none]

Hi (-:
I can't understand how fadeout works  in Opera and IE )))-:

Two pieces of code:

   $("p").live("click", function(){
      $(this).fadeOut("slow");

    });


   $("tr").live("click", function(){
      $(this).fadeOut("slow");

    });

The first works well in all browsers, but the second in the opera and
IE rows just disappear momentaly!  This is a bug or a feature? (-:
How to make work properly????
Thnx!!