I think this is actually the aptdaemon bug #981124 that we are hitting here. I uploaded a fix into precise-proposed and I think it only affects i386, this is why I was not able to reproduce this myself. Could you please confirm that you run on a i386 system (in a terminal you can type: "dpkg --print-architecture").
** Changed in: software-center (Ubuntu) Importance: Critical => High ** Summary changed: - trying to install psychonauts enters infinite crash loop + trying to install psychonauts enters infinite crash loop on i386 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1011780 Title: trying to install psychonauts enters infinite crash loop on i386 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/1011780/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs