How do I "mangle" directory names?

[David Zanella]

Been messing around with Samba for a few weeks now. I think I  have it
pretty much configured how I want it with respect to file name
mangling, but I'm a little bothered by how it handles directory names.


If I create three different directories: foo, Foo, and FOO, they are 
represented inside NT Explorer as:

foo
Foo
Foo

And whatever directory I click on, it always shows me diretory "foo". 

So, does anyone know how to set up Samba to do "directory mangling"
so that  dirs like this can be represented correctly?