This is fixed in Feisty (probably due to newer kernel) However, there are still issues. See
https://bugs.launchpad.net/ubuntu/+source/linux-meta/+bug/95892 -- LiveCD fails to launch on HP NX9420 if connected to network https://launchpad.net/bugs/82387 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
