Hi All, Am getting the following errors in my logs: Jan 16 14:11:45 apple kernel: ACPI-1138: *** Error: Method execution failed [\MCTH] (Node ffff81001fe178d0), AE_AML_BUFFER_LIMIT Jan 16 14:11:45 apple kernel: ACPI-1138: *** Error: Method execution failed [\OSFL] (Node ffff81001fe17928), AE_AML_BUFFER_LIMIT Jan 16 14:11:45 apple kernel: ACPI-1138: *** Error: Method execution failed [\_SB_.PCI0._S3D] (Node ffff81001fe01da0), AE_AML_BUFFER_LIMIT Jan 16 14:11:45 apple kernel: ACPI-0158: *** Error: Method execution failed [\_SB_.PCI0._S3D] (Node ffff81001fe01da0), AE_AML_BUFFER_LIMIT Jan 18 21:45:29 apple kernel: ACPI-0205: *** Error: Return object type is incorrect [\_SB_.LATA._CRS] (Node ffff81001fe01f00), AE_TYPE I think it's to do with the onboard sound, as arts in kde seems to be failing and esd when am in gnome. I tried using a later kernel but it wont boot as udev dies and the kernel panics. anyone any ideas...? lspci output: 00:00.0 Host bridge: nVidia Corporation: Unknown device 00e1 (rev a1) 00:01.0 ISA bridge: nVidia Corporation: Unknown device 00e0 (rev a2) 00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management (rev a1) 00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev a1) 00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev a1) 00:02.2 USB Controller: nVidia Corporation CK8S USB Controller (rev a2) 00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2) 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1) 00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller (v2.5) (rev a2) 00:0a.0 IDE interface: nVidia Corporation CK8S Serial ATA Controller (v2.5) (rev a2) 00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI Bridge (rev a2) 00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI Bridge (rev a2) 00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration 00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map 00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller 00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control 01:00.0 VGA compatible controller: nVidia Corporation NV17 [GeForce4 MX 440] (rev a3) 02:0b.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80) 02:0c.0 RAID bus controller: Silicon Image, Inc. (formerly CMD Technology Inc) SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02)