Try passing the "noapic" to the kernel at boot. This is easily done by adding "noapic" to the string of options you have in your append line, and then run lilo.
Change this:
Code:
append=" devfs=mount splash=silent pci=bios"
...to this:
Code:
append=" devfs=mount splash=silent pci=bios noapic"
Do not forget to run
/sbin/lilo when you're done to apply the changes.
Håkan