Hi, I run Fedora Core test 2 with the redhat kernel 2.6.5-1.332 and booting without acpi=off will crash the kernel: http://ska-fan.homelinux.org/~twanger/panic.jpg I need acpi because otherwise every other pci device gets assigned irq 5 and sound doesn't work. Thanks -- Markus Bertheau <twanger at bluetwanger.de>