Great job with Fluency Admin 3.2, I like it much better and have been using Fluency since day one on all of my websites.
Although I don’t use Internet Explorer myself (yuck) plenty of my clients do (unfortunately). I have noticed the following issue in the latest version of IE: http://i.min.us/ijsBWy.png
I have not tested in any other version. As you can see by the above picture, the background colour is not right :S Happy to assist you pin down this error by change CSS etc., I’m not sure what it could be.
Second issue is VERY VERY minor but may be noticable with different menu colours: http://i.min.us/ijoCJ0.png
Please see the image for explanation.