I'm essentially having the same problem as described here, except that it's isolated to IE:
http://www.gravityhelp.com/forums/topic/urgent-form-broken#post-34947
However, since an answer wasn't actually given there (understandably so, given the OP's attitude), that post doesn't actually help, and I'm haven't been able to find any other examples of this situation in my forum searches.
When you fill out the first part of the form in IE, then click next at the bottom, it just clears everything you entered in the first page, then stays there, does not advance to the next part.
Here is the form:
http://www.texasweet.com/retailers/order-materials/order-educator-materials/