The pop down problem I bet is directly related to an irritating change that happened awhile ago. If I hover over, say the Help heading just for a second or two the menu comes down, but will not go back up after leaving the heading and it hangs there in the down position. At first I could click anywhere to make it go back up, but now that does not always work and I have to click that heading again to make it go away. It's that it hangs there over the advertisement that I bet triggered the notice of it.