Comment 5 for bug 495065

It would appear that the problem corrects itself when you either rearrange the icons/launchers already on the dock or when the dock is expanded because of the appearance of the icon of an application for which there is no launcher. Another way to fix the problem is to simply right-click any icon, launcher or docklet. I am largely ignorant, but I think figuring out why these events make the dock behave correctly might give useful insight into how the problem might be fixed. Since I am able to manipulate the dock into behaving corrently by using either of these methods, I cannot help but think there ought to be a relatively simple fix for this problem just waiting to be found.