La scheda video del mio Macbook pro retina non parte.

Ho comprato un macbook pro retina (15" 2.3ghz 8gb ram)2 settimane fa, tutto bene fino ad oggi. il mac è diventato lento soprattutto nella visione della grafica. c'è un lag continuo delle finestre delle icone, come se la scheda video nvidia non partisse e il mac stesse usando la scheda video condivisa. non so cosa fare qualcuno ha avuto problemi simili? devo contattare apple?

Google Translate says you are speaking Italian and in English you are asking: / Google Translate dice che si parla italiano e in inglese si sta chiedendo:
I bought a macbook pro retina (15 "2.3GHz 8GB Ram) 2 weeks ago, so far so good. Mac has become slow, especially in view of the graphics. Continuous there is a lag window of icons, as if the card nvidia video does not start and the mac was using the shared video card. I do not know what to do has anyone had similar problems? should I contact apple?
Of which I say / Di cui io dico:
You should not be experiencing any lag at all on a Macbook Pro Retina. Therefore I would suggest you contact Apple. Here is their information:
Non deve trattarsi di alcun ritardo a tutti su un MacBook Pro Retina. Quindi vi suggerisco di contattare Apple. Ecco le loro informazioni:
Italy
Start your support request online and we'll connect you to an expert.
(39) 199 120 800*
www.apple.com/it/support/

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    Google Translate says you are speaking Italian and in English you are asking: / Google Translate dice che si parla italiano e in inglese si sta chiedendo:
    I bought a macbook pro retina (15 "2.3GHz 8GB Ram) 2 weeks ago, so far so good. Mac has become slow, especially in view of the graphics. Continuous there is a lag window of icons, as if the card nvidia video does not start and the mac was using the shared video card. I do not know what to do has anyone had similar problems? should I contact apple?
    Of which I say / Di cui io dico:
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    Italy
    Start your support request online and we'll connect you to an expert.
    (39) 199 120 800*
    www.apple.com/it/support/

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    Google Translate says you are speaking Italian and in English you are asking: / Google Translate dice che si parla italiano e in inglese si sta chiedendo:
    I bought a macbook pro retina (15 "2.3GHz 8GB Ram) 2 weeks ago, so far so good. Mac has become slow, especially in view of the graphics. Continuous there is a lag window of icons, as if the card nvidia video does not start and the mac was using the shared video card. I do not know what to do has anyone had similar problems? should I contact apple?
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    Start your support request online and we'll connect you to an expert.
    (39) 199 120 800*
    www.apple.com/it/support/

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