http://linmodems.technion.ac.il/ the link to Mark Chapman's guide at: http://download.boulder.ibm.com/ibmdl/pub/software/dw/library/l-faq.pdf returns a 404 Not Found error. However, the guide can now be found at: http://www.pathogenomics.sfu.ca/brinkman/l-faq.pdf Maybe the next time you update your page, this could be changed. Cheers,Kath Worsfold