Macbook Pro shut down and won't restart

Hi all
My Macbook Pro is just over one year old so now out of warranty. It just shut down without warning a few weeks ago (nothing strange happened, no water spillage or anything like that) and wouldn't turn back on. When I attached the charger to it there was no little light (either green or orange) and would just do nothing at all. I took it to an authorized Apple technicians (I live in Dubai) and they reset the motherboard and it was working fine. Last week it did exactly the same thing and shut down again and wouldn't turn back on. They're now saying they may need to replace the whole motherboard which is going to cost me a fair bit.
I'm quite annoyed as it is my first Macbook Pro and everybody told me how they never have problems etc etc. Any other suggestions as to what might be the issue or do I just need to shell out for the motherboard? I'd read online that the battery could be the issue but they're saying they tried a new battery in another customer's machine and it didn't work so are replacing the motherboard.
Thanks,
Lauren

It is difficult for anyone to ***** the problems your MBP is experiencing in a setting such as this forum. The best I can do is point you to this troubleshooting article;
http://support.apple.com/kb/TS1367?viewlocale=en_US
Ciao.

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Troubleshooting: My computer won't turn on
This is the Mac Pro desktop forum. I requested your post be moved to the MacBook Pro laptop forum.

Macbook Pro shut down and won't restart

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