Look to the top of explorer window and click on "View" then toolbars and from the menu place a tick at the side of "Address bar" It will now be back on show. Might be a good Idea to place a tick in the "Lock the toolbars" from the same section while your there.
It works ok for me and you can get rid of the Google toolbar the same route, doesn't remove it from the system though. Maybe I didn't make it clear enough!
With a IE window open click on View, third from left at the top of the screen, the menu drops down, then hover the mouse pointer over Toolbars, you can then tick or untick any of the toolbars in the menu to add or remove them. You can lock the toolbar by ticking next to that icon.