[jQuery] Ajax callback + corners + IE

[Rodolfo Allan]

Hello,
I'm having problems with microflacid browser. When I call corners, IE 
(always IE, 6 and 7, not tested with 8) complains about the jQuery 
corners. More exactly If I try to load modal and put round corners on it 
by callback IE stop working. It works fine with Firefox 2+, Chrome, 
Safari and Opera.

As expected, the line with error is one that does not exist in my code. 
Code that causes errors (example):

$().ajaxStart(function(){
             $.blockUI({
             css: {
                 border: '1px solid #FF7F00',
                 width: '250px',
                 padding: '5px',
                 'text-align': 'center',
                 'background-color': 'white',
                 opacity: 1,
                 zIndex: '9999'
             },
             overlayCSS:  {
                 backgroundColor:'#000',
                 opacity:        '0'
             },
             message: $('#wait'),
             baseZ: 9901,
             centerY: true});

             $('.blockUI').addClass('rounded');

             basic_effects();
             }
         })

what basic_effects does is $('.rounded').corners(' 8px');

Another example of the code with problem:

$("#div").load('somefile.php',
           { data: data }, function() {
               basic_effects();
           });

where somefile.php haves stuff like <div class="border">bla bla 
bla</div> or anything with class border.

The very helpfull IE error message is:

Line: 89
Char: 327
Error: Unknown runtime error
Code: 0

Any thoughts on how can I solve without just giving up from IE? 
(unfortunately, 60% ppl use IE)

Thanks in advance,
Rodolfo.