can't login to account maintanence

[jhiles]

I am running Joomla 2.5.14 and VM 2.0.24
I can't login to account maintanence, add anything to the cart, or go to the next page of products only in Internet exporer
Chrome works and firefox works.
my shop url is: https://www.lynnhiles.com/index.php/media-store
Major problem because the majority of our customers use IE.