TinyMCE on Blog´s

Why not have the tools TinyMCE, when I create or edit blogs or articles.

I only have plain text.
How to enable editing tools.

Thank

Dol.6.1.6
Add New Article/Edit Article => Use TinyMCE as default

Add New Blog/Edit Blog => Use TinyMCE as default

if they do not show you have a bad tiny_mce folder/ or you have a bad tempaltes/templ_uni/scripts/bxtemplconfig.php file...you can alos try to delete the files ending with .gz in your plugins/tinymce folder