package fglrx 2:8.723.1-0ubuntu4 failed to install/upgrade: subprocess installed post-removal script returned error exit status 2. Screen display quality is worse after upgrade

[Stefan Oberhauser]

Quality of display is worse after upgrading.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: fglrx 2:8.723.1-0ubuntu4
ProcVersionSignature: Ubuntu 2.6.32-23.37-generic 2.6.32.15+drm33.5
Uname: Linux 2.6.32-23-generic i686
NonfreeKernelModules: fglrx
AptOrdering:
 xorg-driver-fglrx: Remove
 fglrx-amdcccle: Remove
 fglrx: Remove
Architecture: i386
Date: Mon Jul 19 15:15:41 2010
DkmsStatus:
 virtualbox-ose-guest, 3.1.6, 2.6.32-23-generic, i686: installed
 virtualbox-ose-guest, 3.1.6, 2.6.31-22-generic, i686: installed
 virtualbox-ose, 3.1.6, 2.6.32-23-generic, i686: installed
 virtualbox-ose, 3.1.6, 2.6.31-22-generic, i686: installed
ErrorMessage: subprocess installed post-removal script returned error exit status 2
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release i386 (20091028.5)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.32-23-generic root=UUID=34264c7b-9e51-4fa7-854c-55a1cf06bcb6 ro quiet splash
SourcePackage: fglrx-installer
Title: package fglrx 2:8.723.1-0ubuntu4 failed to install/upgrade: subprocess installed post-removal script returned error exit status 2
dmi.bios.date: 09/28/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 080015
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: PI-AM3RS785G
dmi.board.vendor: Sapphire Tech
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr080015:bd09/28/2009:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnSapphireTech:rnPI-AM3RS785G:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
glxinfo:
 Error: couldn't find RGB GLX visual or fbconfig
 name of display: :0.0
system:
 distro: Ubuntu
 codename: lucid
 architecture: i686
 kernel: 2.6.32-23-generic