Hello Here is some DMI info from kernel log: Dec 31 02:03:02 sarthorks kernel: [ 16.717511] ACPI: DMI System Vendor: LENOVO Dec 31 02:03:02 sarthorks kernel: [ 16.717513] ACPI: DMI Product Name: 0769AB2 Dec 31 02:03:02 sarthorks kernel: [ 16.717515] ACPI: DMI Product Version: 3000 N200 Dec 31 02:03:02 sarthorks kernel: [ 16.717517] ACPI: DMI Board Name: IEL10 Dec 31 02:03:02 sarthorks kernel: [ 16.717518] ACPI: DMI BIOS Vendor: LENOVO Dec 31 02:03:02 sarthorks kernel: [ 16.717520] ACPI: DMI BIOS Date: 12/21/2007 After one and a half years (with regular updates), my hardy started causing trouble at boot time, and "acpi=off" could fix the trouble. However, after looking at the logs, i tried this "acpi_apic_instance=0", and now acpi is on, and there's no problem. Hope this helps. Sarthak Parikh -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html