Following Form Post, response is returned, but not displayed in IE7

Following Form Post, response is returned, but not displayed in IE7

Our staging site is pretty stable in browsers Firefox and IE9, but we're seeing issues with
IPhone 3G Safari V4.2.1
HTC Windows IE V7.0
I am able to reproduce issue in native IE7 as well.

On posting the form, I see result has come back to the browser (with Fiddler), yet it does not display. The ui-loader div continues to display, then we eventually get the popup, "A script on this page is causing Internet Explorer to run slowly."

My changes include:
jquery.mobile-1.0rc1.min.js updated to jquery.mobile-1.1.0.min.js
jquery updated from 1.6.4.js to 1.8.0

Changed approach to how our functions are called during page load events

     $('div[data-role="page"]').live('pagecreate', function (event) {

to

    $(document).live('pageinit', function (event) {

I can't post link to our Staging site to share, so this may be very difficult to discuss.