Cheers Biggus,
and as many will tell you, including Fergieneer (a fine engineer, but now we're thousands of miles apart a crap folksinger <g>) I'm a lot more cogent online than in real life....
Please folks, remember that we don't advance through brilliant insight, we learn by our mistakes, and as we make those mistakes we probably p*ss the majority off. Anyhow, it's Saturday, what the **** are we doing on a bulletin board?
Dave