When updates are available you have the choice of install or show details. When you click install the updates are installed then you have to close the updater. When you click show details then install after the update it checks again for updates then shows you the updates you just installed but they are unchecked.
Is this just a flaw in the UI or is there some reason for this? How come the updater doesn't alert you after the install then close itself. This has always really annoyed me for some reason.