You probably don't have multiarch enabled. If you upgraded to Oneiric early in the dev cycle, you need to manually perform the step described in this post:
https://lists.ubuntu.com/archives/ubuntu-devel- announce/2011-August/000886.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/853738 Title: nspluginviewer is missing in amd64 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nspluginwrapper/+bug/853738/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
