Previously I have solved my problem with Miro, now it comes another new issue. The problem occurred because Ubuntu has updated the libxine to 1.1.10-1, but Miro depends on libxine1 earlier than 1.1.8 to run!

So, in the end, either you can install Miro 1.2 with libxine1 1.1.7 or Miro 1.1.2 with libxine1 1.1.10 on Hardy Heron or latest gutsy.

Hope Miro can solve this problem as soon as possible.