Okay, I'm calling it. Final version and .pdf's attached. Bob, after more thought - I have no problem posting the original .ppt on the web site. Thanks for your help, all. Todd. Todd Westerhoff High Speed Design Group Manager Cisco Systems 1414 Massachusetts Ave Boxboro, MA 01719 email:twesterh@xxxxxxxxx ph: 978-936-2149 ____________________________________________ "Always do right. This will gratify some people and astonish the rest." - Mark Twain