http://www.inxight.com/Inxight_Corporate_Web_Site/Edu_Org_Program/Intro_to_Program.html Take a look at this tool... looks like it could be useful for browsing phylogenetic trees. I'm working a bit on a molecule viewer and the frontend for codon. If I'm lucky it could be done tomorrow night. If not, well, it will wait another week. -- "We don't like their sound, and guitar music is on the way out." --Decca Recording Co. rejecting the Beatles, 1962