Hello again, Thanks to Datto I can now run a xen0 kernel. xenU seems to have trouble booting still, but I can work on that. However, a DNS problem has me stumped: Shortly after booting xen0, DNS breaks. I can still ping the DNS hosts via ip no, or ssh to any IP in the world, and /etc/resolv.conf still has the correct info. But 'host' doesn't work, or any other DNS lookup. I debugged for a while, and it seems that if I call 'host' twice, the first is fine, but the second call breaks dns. Or running the rhn_applet_gui breaks it. However, the '/sbin/route' command will correctly give the gw name rather than address as many times as you like, and presumably is does a dns lookup to find it. Machines in the 'hosts' file are still correctly translated. Can anyone suggest what is wrong? Note, I do not know WHY dns isn't working. Thanks, Bill