[i845g] monitor displays black and white lines frequently

[Nandhakumar]

Hi, I am newbie to ubuntu10.04. I used ubuntu8.04 earlier. It worked fine. Then I upgraded to 9.10. It showed frequent hang.then I upgraded to ubuntu 10.04, from the first day I have the following problems.
The mouse pointer is disabled for nearly 10 minutes and then it appears.But,all the mouse actions are carried on and when I highlight some icons,menus using mouse, I am able to do so. If I open a terminal and type some command , then if I move the mouse I could get the mouse pointer visible. So, Daily after boot, I openup a terminal , type something and make the mouse pointer visible.
The next problem is when I am working , in between suddenly I get a black screen with white vertical lines filling half the screen. after this screen, I am not able to do anything, but just reboot the system manually. I tried to boot in failsafe GNOME. But no use.In both GNOME and failsafe GNOME I get the same screen. Nowadays This problem is occuring frequently. I am really frustrated because I am currently working in my project and this error leads to loss of data.
My system configuration : Pentium IV processor with 2.4GHz speed, Intel 845GV chipset motherboard, 40GB Harddisk, 512+128 MB of DDR RAM, 15" CRT monitor. I have a broadband connection of 256Kbps speed. I also update the system when asked by the package update manager through Internet.
I am not sure what causes the problem. Please help me out. Waiting for your valuable suggestions.
Regards
N.Nandhakumar

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: xorg 1:7.5+5ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-22.33-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-22-generic i686
Architecture: i386
Date: Tue May 25 22:43:35 2010
DkmsStatus: Error: [Errno 2] No such file or directory
InstallationMedia: Ubuntu 10.04 LTS "Lucid Lynx" - Release i386 (20100429)
Lsusb:
 Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: PCS Industries Ltd. 845GV-M
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic root=UUID=b8bd410d-722e-4f62-b84c-273e3738e3d7 ro quiet splash
ProcEnviron:
 LANG=en_IN
 SHELL=/bin/bash
SourcePackage: xorg
Symptom: display
dmi.bios.date: 10/13/2004
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: L1.40
dmi.board.name: 845GV-M
dmi.board.version: 1.00
dmi.chassis.asset.tag: 00000000
dmi.chassis.type: 3
dmi.chassis.version: Version 1.00
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrL1.40:bd10/13/2004:svnPCSIndustriesLtd.:pn845GV-M:pvr1.00:rvn:rn845GV-M:rvr1.00:cvn:ct3:cvrVersion1.00:
dmi.product.name: 845GV-M
dmi.product.version: 1.00
dmi.sys.vendor: PCS Industries Ltd.
glxinfo: Error: [Errno 2] No such file or directory
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-22-generic