I discoverd that everything is fine if i have the new Contact Form 7 + Jetpack.. And use WordPress 3.3. When i update to the new 3.4 everything fuckup.. even when Jetpack not are on the server..
I conclude than WordPress 3.4 is made for the new Jetpack, and ther connection make it impossible to use Contact Form 7
Jetpack folder, deleted by FTP, stil not working 🙁
I have the same problem :S