Welcome to the 406 Owners Club (406oc.co.uk and pug406.co.uk). If you havn't registered, you can post in here, and find out what the site is all about!
And if it's not, you could always use the new clocks as an ornament...
Actually, with the fuel gauge waving about and the tachometer dropping to zero it might be an idea to "reseat" (i.e. pull off and stick back on) the connectors to your clocks.