I have a Macbook Pro.  iMessage has stopped working.  I have provided my apple id and password several times and it won't allow me to log in.  Thanks

Can anyone tell me why iMessage on my macbook pro stopped working and why it won't allow me to sign in. The apple id and password are definitely correct.

What happens when you try to sign in?

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    Hi,
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    This can be used to boot the machine and delelte enough files to get it to boot normally.
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    Read about storage drive so you can store your extra stuff.
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    Message was edited by: Mike Boreham...added sec on line

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    >GT740M,HD Graphics 4000
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    -http://helpx.adobe.com/premiere-pro/kb/error---preludevideo-play-modules.html
    -http://forums.adobe.com/thread/1001579
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    -http://www.anandtech.com/show/4839/mobile-gpu-faceoff-amd-dynamic-switchable-graphics-vs-n vidia-optimus-technology/2

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