If you select an item from the locator bar menu (e.g., Annotation), then attempt to use Alt+Up or Alt+Down to navigate to the previous or next such unit in the resource, it only activates the menu, as the focus remains in the menu instead of being returned to the main resource window as it should.
Here's a video that demonstrates the problem:
http://www.screencast.com/t/xXPdxbbjJ0T