Hi: The BIOS setup utility (v02.58 American Megatrends) provides multiple ACPI versions . ACPI v1.0 . ACPI v2.0 . ACPI v3.0 Currently i've configured ACPI v1.0 while running DragonFly BSD HEAD, but i'd like to know what is the recommended version to setup in BIOS while running DragonFly ? thanks Saifi.