[Plugin: Facebook Connect] Internet Explorer displays a blank page after first login

While we all pray for the day IE is banned from the internet, I’m having an IE specific issue with this plugin.

Using this plugin to connect and create an account for the first time returns a blank white page in IE. If you hit refresh it then loads the page and everything is fine.
It seems to be fine in all other browsers.

Has anyone seen this problem?

This is the page I’m struggling with
https://www.plush.us/us-lounge/

The site uses a modified version of the twenty ten theme.