I found useful information at http://www.homenethelp.com <http://www.homenethelp.com> Anyone with a cable modem or dsl should consider installing a software or hardware firewall. I was surprised to find log entries for "the ping of death" - Was this the explanation for unexpected lockups? You can run security tests at www.dslreports.com <www.dslreports.com> or try the Shields up test at www.grc.com <www.grc.com>