package nautilus-dropbox (not installed) failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)

[Mark909]

The nautilus-dropbox package cannot be installed either via Ubuntu Software Center or via command line (apt-get). It's stuck at "Downloading... 99%".

Thanks.

ProblemType: Package
DistroRelease: Ubuntu 12.04
Package: nautilus-dropbox (not installed)
ProcVersionSignature: Ubuntu 3.2.0-25.40-generic 3.2.18
Uname: Linux 3.2.0-25-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu8
AptOrdering: nautilus-dropbox: Configure
Architecture: amd64
Date: Fri Jun 22 16:21:50 2012
ErrorMessage: subprocess installed post-installation script was killed by signal (Terminated)
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425)
SourcePackage: nautilus-dropbox
Title: package nautilus-dropbox (not installed) failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)
UpgradeStatus: No upgrade log present (probably fresh install)