Not to revisit the issue, necessarily, but here's the take from an influential outside observer. http://www.economist.com/science-technology/displaystory.cfm? story_id=16004390 cheer, colin -=-=-=-=-=-=-=- Colin Favret, Chief Scientist, AphidNet, LLC 18901 Tributary Ln, Gaithersburg MD 20879-3409, U.S.A. +1-301-661-5089, www.AphidNet.org