It appears that Orange, in their infinite wisdom, decided that they were better than Nokia at creating a usable phone, and are in the habit of replacing the standby (home) screen on their some of their smartphones with a custom Orange one. It’s actually pretty awful, as it’s unreadable, doesn’t always update correctly, and doesn’t show some useful information such as the current profile. Orange were too arrogant to admit this at first, although in their defence it looks like there will be a way to disable it on future models. I have a Nokia 6630 and this has annoyed me for some time - I also have a suspicion it has contributed to many of the crashes I seem to encounter with the phone. Fortunately someone has written a small application called HSKiller to kill this homescreen and bring back the default (the page is in French - the download link is right at the top). It has a few minor niggles, but seems to be working relatively well so far for me.
Incidentally, JJLKeyLock is also a pretty handy application for the 6630 and other Symbian S60-based phones, as it provides a timeout-based keylock, as provided on some earlier Nokia phones, but not these.