Let me explain - when you pass your mouse over a link in a web page -
you most often will see the web address on the very bottom line in
explorer - where it says "Done" when a page has completed loading
up,

Now when I'm in my (web) Email - I can also make use of that feature
(specially when checking unknown sender email), I pass the mouse over
the sender name and it shows their email address down the bottom of IE
window - same thing for the Subject, when the display only shows part
of the text - mouse over and it'll show the full subject at bottom of
IE.
Now I'v just updated to IE7 -  that down the bottom display is not
showing up ?!!??
I found it very useful when viewing Web Email,  specially if you
wanted to double check something IS in fact spam, before you mark it
as spam and delete.
It's obviously not a web page feature - but some setting? in IE ? but
what and where?
many thanks.