I have some products set up with Multiple variants and some with just one generic variant. The problem I have is only on Internet Explorer, Firefox and chrome work fine.
On IE the products with multiple variants do not add to cart. here is one of the products that I am having trouble with.

http://www.vacshack.com/p-998-thymes...ollection.aspx

When i launch XP Mode and use IE6 I have no problems.

Is there a fix?