Dear Andrzej,
The Views Debugger is very good in these cases, because you can see all views and content templates used in the current page. There is also a direct link to edit this one in the dashboard. I think it will help you a lot.
You can enable this one in Views > Settings in the section called "Debug mode".
Please let me know if you are satisfied with my answer and if I can help you with any other questions you might have.