Its most likely a problem with your internet explorer 9
or to be specific addons you installed on it…
Try removing addons from internet explorer and tried again.
found some talk that divx / xvid addons might do that for some reason
Additional Reading:
- Internet Explorer 9 – Problem with forms and page scripts
- Problem with buttons in web pages using after installing IE9
Also in this conversation someone stated that a button with a name attribute
might cause the button to unload variables attached to the form.
.
Hope this helps… Removing addons helped me 😉
Cheers, Sagive.