Can't install 'ubuntu-desktop'

Upgrading from 11.04.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: update-manager 1:0.152.16
ProcVersionSignature: Ubuntu 3.0.0-9.14-generic 3.0.3
Uname: Linux 3.0.0-9-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Sun Aug 28 07:50:33 2011
DpkgHistoryLog.txt:
 Start-Date: 2011-08-03 07:49:15
 Upgrade: libsmbclient:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), smbclient:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), libwbclient0:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), libpam-smbpass:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), samba-common:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), samba:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), libsmbclient-dev:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), samba-common-bin:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3), winbind:amd64 (3.5.8~dfsg-1ubuntu2.2, 3.5.8~dfsg-1ubuntu2.3)
 End-Date: 2011-08-03 07:49:43
DpkgTerminalLog.txt:
 Log started: 2011-08-03 07:49:15
 Log ended: 2011-08-03 07:49:43
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_DK.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: Upgraded to oneiric on 2011-08-28 (0 days ago)