unformatted text on page

Hello!
I've installed the module and followed all instruction step by step. It seems all fine, no errors in the configuration. BUT when I edit a content, in the ckeditor is ok, but on the page the text is completely unformatted. For exemple, no bold and no br, nothing. It's just plain text. I use ckfinder to upload images, but when I upload an image I can see it only into the editor, and not on the page.

Formatting just works in blocks... how is this possible..? Moreover, I can't see some buttons of the editor.

I hope someone can help...

Thank you.
Francesca