I have the same problem and i'm running lion, but i'm not in full screen, and i doubt this lady is either - please give us a bit more credit than that - i think if it was as simple as pressing 'esc' we wouldn't need to be told it or even ask. But yeh, I downloaded lion onto my macbook pro (previously snow leopard) about a month ago, and everything worked fine for maybe 3 weeks, but then the safari menu bar dissapeared for a few days non-stop, so i re-downloaded safari. It worked fine for maybe a week, and then it happened again, and is still not working properly as I write this. Contrary to your belief, the screen is in standard view, and where the menu bar at the top, and icons at the bottom should be, I can just see my desktop picture. I'm assuming it's an error on apple's part, but it's a ridiculous error because it affects the whole of the application's function, as I can't access anything apart from the search bar, bookmarks, address bar and the page i'm on. It's so inconvenient because it then means i can't go into history or access any options etc. and i don't expect to pay good money for a faulty upgrade that apple obviously haven't tested well enough before release.