Hi; What is this warning I get at boot just before Red Hat nash starting: "POWERNOW-K8; MP systems not supported by PSB BIOS Stuctures" ?? I believe it has something to do with acpi which is mainly for laptop "sleeping" and I have a desktop. Tried " kernel /vmlinuz-2.6.22.1-41.fc7 ro root=LABEL=/ acpi=off rhgb quiet" in grub, but still get the warning. In BIOS setup it is enabled but greyed out i.e. can't be disabled. I have just installed a new ASUS M2NPV-VM motherboard with an AMD Athlon 64 X2 Dual-Core Processor. Any suggestions on how to turn off either the warning or acpi in Fedora 7? I am supposing it has some use in my WindowsXP. -- Regards Bill