2.66 ghz unibody mid 2009

2 weeks after installing mac osx lion my computer starts to sound stange.and as a result my computer doesn't startup.when i press the power button i can only see white screen.shall i try to fix it my self or go to guarantee service?

thanks in advance

Answer this question I have this problem too

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Please give us the last three figures of your serial number. Thanks

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İts "64B" thank you for your attention :)

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Deck the Halls
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Use your original system installation disk to start up from. Insert disk and restart holding down the "C" key. Go to the second screen pull down menu to Utilities > Disk utility. Select your hard drive from the left hand column. Run repair on it till it runs clear. Next repair your permissions. If your hard drive fails to show up, let us know and we can show you how to replace it.

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Thanks mayer but it still remains the same.what shall i do thanks for your help.

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I need some symptoms and a history to work with. What did it do when youu tried the DVD?

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İ insert it and it couldn't be read it.in addition i cant eject the DVD now.i can upload a video of it to Youtube if it would be helpful :)

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mehmet will be eternally grateful.
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