For me it was not working for IE9, your mileage may vary.
To disable for IE9 just follow what I did in post #1220... Go to plugin manager, edit that plugin, and make the block of code look like what I posted.
If you want to disable on IE9 AND limit it to certain usergroups:
Code:
global $vbulletin
if (ieversion() < 9.0 AND is_member_of($vbulletin->userinfo, 5, 6, 7))
{
$is_livetopic = true;
$livetopichook = 'template_edits';
include 'includes/livetopic_hooks.php';
}
That will allow usergroups 5, 6, and 7 to use it and only if they are NOT using IE9.