(solved) Why I can't load MY_ libraries?

[eluser]4ever[/eluser]
In view this is OK:

Code:

print_r($this->form_validation);
print_r($this->form_create);

In view this FAILS:

Code:

print_r($this->my_form_create);
print_r($this->my_form_validation);

Conclusion:
- I mustn't write the MY_ or my_ to library() and when I access my method through class.
- Yet I see that no Uppercase letters in load->library() does mind.
- Yet I see that no MY_ in class does matter.

But I expect the class should be named MY_...

Many thanks to Ellli