I get a 500 internal server error when attempting to add a product to my cart in internet explorer 9. My Woocommerce install is currently set to automatically redirect users to checkout when they add an item to their cart. This error only appears in Internet Explorer, add to cart works fine in Chrome Firefox etc.
I've tried increasing my memory limit as suggested in this thread: http://wordpress.org/support/topic/plugin-woocommerce-excelling-ecommerce-update-the-new-version-a-few-hours-ago-got-the-500-internal-error-htaccess?replies=4 but that did nothing. Anyone have any idea what the problem could be?