Hi there - This plugin is great but since upgrade to 3.5 I've discovered conflicts with a couple of themes by premium theme developers and therefore have had to delete it from all my sites. In particular, drop down menu items not appearing and for Elegant themes - shortcode tab slider content not appearing at all. Wp Socialiser was the only common denominator. Deactivated and all back to normal for all sites that are running on differing themes with different plugins
The floating bar was also causing issues in IE and WP3.4 so I never used it. IT never floated to the left - always floated over content and in the way of text so visitors could not read it.
It'd be great if you sorted this. A great plugin when it's compatible:)