|I have the same IE version.|
It doesn't go to the end using the key if you are using Favorites in the menu bar (between View & Tools).
It does go to the end if you use the Favorites "button" on the next bar down (one with the yelllow star).
Just for info, I've found that the one in the menu bar is best for dragging Favorites about, the other one is messy for that. The one with the button is better for moving about in Favorites because you don't have to hover the mouse. It's a pity they didn't just invent one that was good for everything.
Always pop back and let us know the outcome - thanks