I'm still having ACPI difficulties with Linux-2.4.1-pre10 on my system. Up to (and including) Linux-2.4.0, it worked fine; the kernel reported: Jan 14 22:53:05 jhereg kernel: ACPI: System description tables found Jan 14 22:53:05 jhereg kernel: ACPI: System description tables loaded Jan 14 22:53:05 jhereg kernel: ACPI: Subsystem enabled Jan 14 22:53:05 jhereg kernel: ACPI: System firmware supports: C2 Jan 14 22:53:05 jhereg kernel: ACPI: System firmware supports: S0 S1 However, since Linux-2.4.1-pre8, I get: ACPI: System description tables found ACPI-0191: *** Warning: Invalid table signature found ACPI-0073: *** Error: Acpi_load_tables: Could not load RSDT: AE_BAD_SIGNATURE ACPI-0101: *** Error: Acpi_load_tables: Could not load tables: AE_BAD_SIGNATURE ACPI: System description table load failed Excerpts from my boot log follow: BIOS Vendor: Award Software International, Inc. BIOS Version: 6.0 PG BIOS Release: 08/30/00 Board Vendor: MICRO-STAR INTERNATIONAL CO., LTD. Board Name: MS-6167 (AMD751). Board Version: 1.X. BIOS-provided physical RAM map: BIOS-e820: 000000000009fc00 @ 0000000000000000 (usable) BIOS-e820: 0000000000000400 @ 000000000009fc00 (reserved) BIOS-e820: 0000000000010000 @ 00000000000f0000 (reserved) BIOS-e820: 0000000000010000 @ 00000000ffff0000 (reserved) BIOS-e820: 000000000fef0000 @ 0000000000100000 (usable) BIOS-e820: 000000000000d000 @ 000000000fff3000 (ACPI data) BIOS-e820: 0000000000003000 @ 000000000fff0000 (ACPI NVS) I'd appreciate it if anyone can tell me what the deal is. -- David M. Meyer [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] Please read the FAQ at http://www.tux.org/lkml/