Comment 32 for bug 1360200

Hmm, it looks like Qt cannot handle a fork() after it is loaded on your machines. I have created a build that forks before loading any qt modules, hopefully that will fix it.

As before, the builds are at http://download.calibre-ebook.com/betas/

To install them download the appropriate tarball (32 or 64 bit) then, assuming you installed calibre in /opt/calibre, run the following command:

    sudo rm -rf /opt/calibre/* && sudo tar xvf /path/to/downloaded/calibre-tarball.txz -C /opt/calibre