Edward wrote: > In the post where you show things going wrong, you have usb AND ethernet > on 11. You say you have no usb devices. > > How about this test then? = Disable USB in the BIOS and see what happens. Bill Shannon wrote: > I tried that. It made no difference. > > I'm still not clear on how to disable acpi in grub.conf. > I tried > > options ide-cd ignore=hdd acpi=off > > and > > kernel /vmlinuz-2.6.8-1.521 ro root=LABEL=/ hdd=ide-scsi acpi=off > > and neither seemed to make a difference. In the latter case, I see this > in /var/log/messages: >From linux/Documentation/kernel-parameters.txt: nousb [USB] Disable the USB subsystem noacpi [IA-32] Do not use ACPI for IRQ routing or for PCI scanning. acpi= [HW,ACPI] Advanced Configuration and Power Interface Format: { force | off | ht | strict } force -- enable ACPI if default was off off -- disable ACPI if default was on noirq -- do not use ACPI for IRQ routing ht -- run only enough ACPI to enable Hyper Threading strict -- Be less tolerant of platforms that are not strictly ACPI specification compliant. See also Documentation/pm.txt, pci=noacpi It might also be worth temporarily disabling both sound and networking: try commenting out the appropriate lines in /etc/modprobe.conf or setting alias sound off. It might *also* be worth playing with kernel.org kernels. Hope this gives you a couple of ideas... James. -- E-mail address: james | ... boxing the books up was a mistake: they are @westexe.demon.co.uk | welded to the floor through the power of gravity. | -- Telsa Gwynne's Diary.