James, can you try if 1.0.2-0ubuntu1 works better, you can grab it from here (only i386 binary, but sources available):
http://users.tkk.fi/~tjaalton/xorg72/pool/feisty/xorg-test/ ** Changed in: xmodmap (Ubuntu) Status: Unconfirmed => Needs Info -- xmodmap doesn't work in feisty https://launchpad.net/bugs/86904 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
