[Fixed]Boolean Problem.

IStonia,
Thank toy very much! Now it works much more better than before!
Practically I found only 2 problems it does not work in:
1. faces of the two mesh overlap each other
2 In this situation where 3 objects was combined together:

Another problem:

I tried some simple examples where I combined objects and it works but here no. Can you check what is wrong here?

1. I may never find a solution for this.
2. Can you send me the scene file?

Here is it:
http://voidworld.cmcproductions.co.uk/index.php?action=dlattach;topic=2649.0;attach=821

Here is it:
http://voidworld.cmcproductions.co.uk/index.php?action=dlattach;topic=2649.0;attach=821

This is not the file I expected. It doesn't have the three small objects.