Hey just ran into a rather annoying issue with IE7.
I have a page which opens a Lightbox window. This lightbox gets its contents from an ajax request. The content has an iframe within it. The iframe has the slick upload html inside.
So
Page > Lightbox Dialog > IFrame > Slick Upload.
I used an IFrame so that I can test and build the slick upload control on its own. And it works happily in all browsers except our friend IE.
I did some googling and I think the problem has been reported.
http://www.clientcide.com/code-snippets/manipulating-the-dom/ie-and-operation-aborted/
http://blogs.msdn.com/ie/archive/2008/04/23/what-happened-to-operation-aborted.aspx
I have mucked around with viewing source, copying the html output and then modifying where the var kw_Component = new Array (...) initialiser script goes. Turns out that if you put it at the very end of the page IE is happy and you dont get bug. Then I noticed the kw._executeInit() and I moved this into a jquery $(document).ready(function(){ kw._executeInit() }); and guess what IE doesn't wig out :) So I think that SlickUpload needs to call the executeInit after the DOM is ready. Have a look at http://api.jquery.com/ready/ to decide when is the best time to executeInit - but I know it works with the jQuery ready.
I'm not really sure what I can do to fix this problem at the moment. I might have to look into When SlickUpload renders this and see if I can override it?