Hey guys, I am confused as to what power management technology I should be using. When I installed debian etch on this powerpc Apple PowerBook, apm was used as default. Things are working great here and I have no complaints. However, I understand there is also ACPI, which is newer. Are there any advantages in switching to ACPI? Do I need to have hardware support for ACPI? Note this is a fairly old laptop (round 6 years). Thanks for any help, Amit