Ice Dove On Wheezy Rated 2 out of 5 stars

Hi,
I'm using Icedove v.17.0.10 (the 100% GPL version of Thunderbird) on Debian Wheezy via Cairo-Dock v.3.0.0, could you, please make it work?
1. When I check "Count messages in subfolders:" and I close the window, when I re-open it, it's unchecked;
2. The animation doesn't work.