Does anybody know how to remove the automatic screen saver (the large clock) of the Nokia 6230 (and others)? There are two annoying features of this clock:

-I cross the border many times and with the clock screen saver in your display you can't see when your provider has been switched (which usually takes up until ten minutes) and you can use your phone again

-I usually drive when it's dark, I can change my phone background to match the interior colour and more important the brightness level of the dashboard and radio, but the screensaver just uses a very bright white colour. The only alternative is switching off the Always On option, but in that case you can't see your display anymore at all.

There does not seem to be any user interface option to switch of the clock-screen saver, so I suppose this must be done programmatically.

I would appreciate any help on this subject