I armed myself with a bottle of Granvilles Electro Connector from Halfords (which is a conductive paint used to repair heated rear windscreens). I got a scalpel and very carefully cut the top layer of plastic off the good section of track to give a good connection and gave a couple of coats to the corroded tracks.
Now my clock works and the temperature warning light flashes to self-test as soon as the ignition switch is turned.

[IMG:400:627]http://i95.photobucket.com/albums/l122/ ... /Dash1.jpg[/img]
[IMG:400:723]http://i95.photobucket.com/albums/l122/ ... /Dash2.jpg[/img]
I have had the dash pod off, and back on about 20 times in the last two weeks and I can now detach it in about 30 seconds flat !