[Dune] Intersection iterator problem

[Aleksejs Fomins]

Dear Sirs,

I have got a problem with intersection iterator.
Shortly the program runs as follows:
1) Load the grid containing 2 adjacent tetrahedrons from a file (this 
part is certainly correct)
2) Use leaf iterator to loop over all elements of the grid
    2.1) Use intersection iterator to loop through all faces of each 
elements
       2.1.1) For each face it prints out its local number, global 
number, and whether it is a neighbor.
I have previously declared corresponding mappers to obtain the global 
numbers.

The problem is that the neighboring elements are not the ones with the 
same global number.

Could you please suggest what might be the problem.

Sorry for asking too many questions.
Regards,
Aleksejs Fomins