Hey my air's screen is mess when it comes back from sleep. It is full of horizontal  colorful lines. However, it becomes ok when I restart it. What's wrong with it?

Hey my air's screen is mess when it comes back from sleep. It is full of horizontal  colorful lines. However, it becomes ok when I restart it. What's wrong with it?

Resetting PRAM may help.
Reset PRAM.  http://support.apple.com/kb/PH4405

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    On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time.
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    http://support.apple.com/kb/ht3964http://support.apple.com/kb/ht3964
    Resetting NVRAM / PRAM
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    Release the keys.
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    About NVRAM and PRAM
    http://support.apple.com/kb/ht1379
    Thank you for using Apple Support Communities.
    Best,
    Sheila M.

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    Hello!  When my IMac awakens from sleep mode, my log in screen is frozen (I can't type anything) and there is no cursor.
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    Thoughts?

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    Intel-based Macs: Resetting the System Management Controller (SMC)
    http://support.apple.com/kb/HT3964
    OS X Mountain Lion: Reset your computer’s PRAM
    http://support.apple.com/kb/PH11243
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    http://support.apple.com/kb/HT1199
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    Delgadoh

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    hi my
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    thanks

    Reset the PRAM
    Reinstall the operating system from the dvd (you will not loose your data)

  • Why is it when using my iPhone 4s front camera, the screen sometimes turn black or have blue stripes on it? What's wrong with it and what should I do?

    When using my iPhone 4s front camera, the screen sometimes become black or have blue stripes on it! Is this a hardware or software problem? Can this issue be covered by my warranty? I bought it inmid-december last year, and this problem came at around Late January. It's a rare case, only came about 5 times, but this really concerns me. What's wrong with it? Thank you so much for your concern.

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  • My iPhone 5 screen is black and will not come back on. The phone still works when paired with my vehicles Bluetooth what's wrong with it, and can I fix it?

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    Try resetting the iPod:
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    - Next try connecting the iPod to your computer and restoring the iPod from backup via iTunes.
    - If itunes does not see the iPod, see if placing the iPod in recovery mode will make it visible so you can restire it.  For recovery mode see:
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