IE checkbox doesn't uncheck

IE checkbox doesn't uncheck


I have an issue that is specific to IE (testing in IE8). 

The following code unchecks checked checkboxes in FF, but will simply not work in IE :

$j("input:checkbox[checked=true]").each(function() {
      $j(this).removeAttr("checked");
      //$j(this).attr("checked",false);  this doesn't work either
      //$j(this).attr("checked","");  this doesn't work either
      alert($j(this).attr("title") + " is "+$j(this).attr("checked"));
});

In all cases the expected alerts are firing, and the alert says that the checkbox is not checked.

But the checkboxes are not unchecked and subsequently still fire when the form is submitted. 

AAARGH !  thank you.  needed to get that out.  I thought IE was all better since v6.