Hi I'm running xp which is not powering down after shutdown (I get the old message "It is now safe to turn off your computer"). So I'm trying to find out if my computer is ACPI compliant. When I look in device manager>computer is see two entries which seems strange. One says ACPI Uniprocessor PC and the other Standard PC. Why would there be two entries? The PC is a Sempron 3200 CPU on an Asus K8V-VM motherboard. Any ideas?