Sorry Bryce, I'm very late. I don't have made any customizations at xorg.conf. These are the informations you ask: 1. Output of lspci -vvnn output of lspci -vvnn 00:00.0 Host bridge [0600]: VIA Technologies, Inc. VT8377 [KT400/KT600 AGP] Host Bridge [1106:3189] Subsystem: ASUSTeK Computer Inc. Device [1043:807f] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: agpgart-via Kernel modules: via-agp 00:01.0 PCI bridge [0604]: VIA Technologies, Inc. VT8235 PCI Bridge [1106:b168] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- TAbort- Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: Kernel modules: shpchp 00:07.0 FireWire (IEEE 1394) [0c00]: VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller [1106:3044] (rev 46) (prog-if 10) Subsystem: VIA Technologies, Inc. VT6306 Fire II IEEE 1394 OHCI Link Layer Controller [1106:3044] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping+ SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: ohci1394 Kernel modules: ohci1394 00:08.0 RAID bus controller [0104]: Promise Technology, Inc. PDC20376 (FastTrak 376) [105a:3376] (rev 02) Subsystem: ASUSTeK Computer Inc. Device [1043:809e] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: sata_promise Kernel modules: sata_promise 00:09.0 Ethernet controller [0200]: Broadcom Corporation BCM4401 100Base-T [14e4:4401] (rev 01) Subsystem: ASUSTeK Computer Inc. Device [1043:80a8] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- SERR- Kernel driver in use: b44 Kernel modules: b44 00:10.0 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 80) Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 00:10.1 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 80) Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 00:10.2 USB Controller [0c03]: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller [1106:3038] (rev 80) Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: uhci_hcd Kernel modules: uhci-hcd 00:10.3 USB Controller [0c03]: VIA Technologies, Inc. USB 2.0 [1106:3104] (rev 82) (prog-if 20) Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: ehci_hcd Kernel modules: ehci-hcd 00:11.0 ISA bridge [0601]: VIA Technologies, Inc. VT8235 ISA Bridge [1106:3177] Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel modules: i2c-viapro, via-ircc 00:11.1 IDE interface [0101]: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE [1106:0571] (rev 06) (prog-if 8a [Master SecP PriP]) Subsystem: ASUSTeK Computer Inc. Device [1043:808c] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: pata_via Kernel modules: pata_via 00:11.5 Multimedia audio controller [0401]: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller [1106:3059] (rev 50) Subsystem: ASUSTeK Computer Inc. Device [1043:8095] Control: I/O+ Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: VIA 82xx Audio Kernel modules: snd-via82xx 01:00.0 VGA compatible controller [0300]: nVidia Corporation NV25 [GeForce4 Ti 4200] [10de:0253] (rev a3) Subsystem: CardExpert Technology Device [10b0:0fc2] Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx- Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- SERR- Kernel driver in use: nvidia Kernel modules: rivafb, nvidiafb, nvidia 2. /var/log/Xorg.0.log : X.Org X Server 1.5.2 Release Date: 10 October 2008 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-19-server i686 Ubuntu Current Operating System: Linux Pavia-Fisso 2.6.27-11-generic #1 SMP Thu Jan 29 19:24:39 UTC 2009 i686 Build Date: 24 October 2008 08:00:16AM xorg-server 2:1.5.2-2ubuntu3 (