after install the pmdg 600 & 700 my cockpit black out, since i just updata my nvida driver i check both my 800 & 900 aircraft they oksee attack phota

Ensure you used the correct license key when activating. There's a separate one sent (well if the email's working now) for the 6/7 expansion.

i did use the license key with my email, i went to me acount check the key which is the same