* Jim B. <jpb at jimby.name> [2012-05-23 15:06]: The revised preso is at http://www.jimby.name/bsdov/bsdov.pdf It's now a link to the latest verion (bsdov_02.pdf). Many thanks for your help folks. The talk is tomorrow. All errors are still my own! I'll leave the preso up for a few days. More feedback is always welcome. Cheers, Jim B.