Not the OP but same issue. I just downloaded this plugin today directly through my blog, so it’s a fresh install.
Essentially, there is a “Thank you for creating with WordPress Version 3.5 at the bottom of every “screenful” of information.
If you only have enough content on the dashboard to keep it without a scroll bar, there’s no duplicated footer (https://imageshack.us/photo/my-images/6/cudash01.jpg/ – shown at full screen width).
If you have enough content for one screen and a bit of another, this is what shows up (https://imageshack.us/photo/my-images/717/cudash02.jpg/ – notice the dual “Thank you for creating with WordPress Version 3.5” at the bottom).
If you have way more content for just one screen, you see this (https://imageshack.us/photo/my-images/839/cudash03.jpg/).
