[Plugin: Jetpack by WordPress.com] Installed 1.8.2. Connecting to wordpress.com causes javascript lo

Installed 1.8.2. Connecting to wordpress.com works, BUT causes a javascript loading error when viewing my site in IE 9.

That results all other javascript functionality tied to my site not to work.

PLEASE Help.

My debugger brings up the message GRAVATAR IS UNDEFINED:
jQuery( document ).ready( function( $ ) {
Gravatar.profile_cb = function( h, d ) {
WPGroHo.syncProfileData( h, d );
};

http://wordpress.org/extend/plugins/jetpack/