These files are provided not by the libpng package, but by ia32-libs. Reassigning.
** Package changed: libpng (Ubuntu) => ia32-libs (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/707770 Title: libpng.so.3 missing for 32 bit apps -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
