Comment 0 for bug 931815

after making an update I get this error.
I'm sorry I can give you further infos, about this error.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: grub-pc 1.98-1ubuntu13
ProcVersionSignature: Ubuntu 2.6.32-38.83-generic 2.6.32.52+drm33.21
Uname: Linux 2.6.32-38-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
Date: Mon Feb 13 22:32:15 2012
ErrorMessage: subprocess installed post-installation script returned error exit status 20
InstallationMedia: CAELinux2011 - Release amd64
SourcePackage: grub2
Title: package grub-pc 1.98-1ubuntu13 failed to install/upgrade: subprocess installed post-installation script returned error exit status 20