Crashes with core dump on start.

[Kaulbach]

When started from Konsole:

mike@ubuntu:~$ k3d
k3d: /usr/include/boost/smart_ptr/scoped_ptr.hpp:93: T& boost::scoped_ptr<T>::operator*() const [with T = k3d::ngui::viewport::detail::context]: Assertion `px != 0' failed.
Aborted (core dumped)
mike@ubuntu:~$

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: k3d 0.8.0.3-6
ProcVersionSignature: Ubuntu 3.15.0-6.11-generic 3.15.0
Uname: Linux 3.15.0-6-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.14.4-0ubuntu1
Architecture: amd64
CurrentDesktop: KDE
Date: Tue Jul 8 13:52:50 2014
InstallationDate: Installed on 2012-11-08 (607 days ago)
InstallationMedia: Kubuntu 13.04 "Raring Ringtail" - Alpha amd64+mac (20121107)
SourcePackage: k3d
UpgradeStatus: Upgraded to utopic on 2014-06-18 (19 days ago)