Nothing major here, but wondering if there are any known fixes. Firefox 4.0.1 randomly flickers.It usually happens when navigating to a new page. It never shuts down, but it is an annoying effect. The second issue is that when I open my bookmark menu, and it covers part or all of the "Windows Explorer" ribbon at the bottom of the screen, it remains sort of a whited out area on the Windows Explorer ribbon after I'm done with the bookmarks. The only way to get rid of it is to click in the lower right corner to minimize all windows and go to the desktop. Again, nothing major, but an annoyance none the less and something I'd like to solve if there is an answer.