No thumbnail option

screenshot: http://awesomescreenshot.com/0b74n85839

note: its He WordPress (RTL)

It’s not there.

You right. My theme create this problem… You can take a guess what can make it in my theme? (I mean searching some php line that makes this problem).

Theres no ‘Thumbnail’ or ‘Remove’ words in functions.php

I try to add:
add_theme_support( ‘post-thumbnails’ );

and:
add_theme_support( ‘post-thumbnails’, array( ‘post’, ‘book’ ) );

and its still not showing up.

Okay. Thanks for the help.