On my Dell Studio laptop, FF4 was installed, but the "awesome bar" is not visible, and there is no "refresh" button for any page. Also, I do not have any way of going back a page, or page forward. Those buttons on top-left are grey-ed out. I'm forced to re-input URLs each time I want to refresh any page, and if I've explored any site past the opening screen, I must re-input the URL and hopefully remember how I got there.