Not sure what this means. I get exactly the same error and I'm not using Synaptic, only apt-get. ia32-libs-multiarch is not present in the repositories and as such the dependencies can not be fulfilled. Do you want a new bug report for this issue filed for ia32-libs then?
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/971761 Title: Cannot install ia32-libs on 12.04 64-bit To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/synaptic/+bug/971761/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs