This brings up a page which Welcomes me to my new Del PC. How do I get rid of it ? There is no close facility on the page and I drag to the bottom of.

Just agree to it and you'll never see it again.

This is the easy answer complete with pictures:
Toolbar EULA: Toolbar EULA (http://toolbareula.blogspot.com/2007/03/toolbar-eula.html)