Ralph - when I said 'I' I meant 'me' not 'you' (Ralph) if that's not completely impenetrable. So I wasn't ticking you off! Oh these wretched pixels...
<Added>And if you'd like one just email me with an address and I'll pop one in the post. (As long as you promise I can have one of yours the minute it's published!)
<Added>Becca - did you click on the link I posted a few posts back? There should be one on that.