Getting tree pane in Explorer to update automatically?

Hi all,
This might be a really dumb question, but in Windows 7 (Home Premium, no 3rd-party modifications), is there an easy way to get the tree pane on the left of an Explorer window to update to the current folder location?

For instance, if I navigate through folders using the folder icons on the right and the address bar at the top, the tree pane on the left still only shows the roots of each of the system's drives. How can I get the tree pane to expand to show my current location, without having to drill down through the tree manually, one level at a time?

Thanks for any help.

it's quite simple, fortunately.

hit the 'Alt' button in windows explorer, this will make a menu bar appear - then press tools >> folder options

now tick the bottom box :)

Well, don't I feel like a wally!

Thanks heaps, mickey. I figured it would be easy when you knew, but I couldn't find that option for looking.

I really appreciate your help, mate.

any time - that's what we are here for - welcome to sevenforums!