Hi, While opening a file, many times it is found that (atleast) IE and Firefox detects webpages of www.stat.math.ethz.ch as 'untrsuted' ! Surely many browsers might have come across this message too (a random example is: https://www.stat.math.ethz.ch/pipermail/bioconductor/2008-August/02384 6.html). The warning messages usually says something like - "www.stat.math.ethz.chuses an invalid security certificate". The website maintainers perhaps may like to resolve it. Thank you. Cheers, Chintanu [[alternative HTML version deleted]]