I've had this issue as well. I think this is a unity error, and probably specifically dealing with that slightly wonky icon animation when installations occur.
For the record, I always have the software center maximized. ** Attachment added: "Screenshot from 2012-06-01 09:21:49.png" https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/1007232/+attachment/3171412/+files/Screenshot%20from%202012-06-01%2009%3A21%3A49.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1007232 Title: The launcher doesn't hide after installing a app "for purchase" from Ubuntu Software Center To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1007232/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs