package grub-pc 1.99-18ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2

[Mal]

Error message appeared at system start up in Ubuntu 12.04 LTS. Unable to get package version using 'apt-cache policy pkgname' error message produced.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: grub-pc 1.99-18ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-18.29-generic 3.2.9
Uname: Linux 3.2.0-18-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 1.95-0ubuntu1
AptOrdering:
 linux-image-3.2.0-20-generic: Configure
 grub-pc: Configure
Architecture: amd64
Date: Tue Apr 3 14:20:58 2012
DpkgHistoryLog:
 Start-Date: 2012-04-03 14:19:55
 Commandline: apt-get install gimp
ErrorMessage: subprocess installed post-installation script returned error exit status 2
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120208)
InvalidGrubScript: /etc/grub.d/11_Windows.save
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-18-generic root=UUID=ae857120-7ccb-4a2c-bbf8-b58385fe892e ro quiet splash vt.handoff=7
SourcePackage: grub2
Title: package grub-pc 1.99-18ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 2
UpgradeStatus: No upgrade log present (probably fresh install)

[Apport retracing service (apport)]

Thank you for taking the time to report this crash and helping to make this software better. This particular crash has already been reported and is a duplicate of bug #969128, so is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Please continue to report any other bugs you may find.