I recently created a subscription iframe through Madmimi. I pasted the embed code in a text widget and placed the widget in Sidebar 1. On my subscription page, I also have a Sidebar 2. When viewed in IE 9, and when the screensize is reduced in Mozilla, Sidebar 2 impinges (covers over) part of Sidebar 1. It only impinges a set amount, independent of the amount of screen resizing.
I reduced the width of the iframe in Sidebar1 to 235 (from 240), but Sidebar 2 still impinges. (both sidebar widths set to 240).
Here is a link to the page
Any advice would be greatly appreciated.