MacBook Pro screen blinks (Some new questions to ask)

Hello everybody, I have exactly the same problem:
http://discussions.apple.com/thread.jspa?threadID=1807105&start=480&tstart=0
My laptop is out of warranty, the Apple service in my country (Bulgaria) is very poor and I want to get the things in my hands. I have some questions:
1) My laptop display bliks - ok, its alright, maybe anoying but everything else works. Is it a problem to work with the display blinks or after few months my laptop will have other problems or will stop working?
2) Is it possible to found parts on the internet and repair it. Someone told me that I can found the needed parts on ebay but I see only logic boards for over 700$ I have only this issue with my laptop - the screen blinks, everything else is fine.
I'll be happy to hear some opinions from users who already have solved this problem. Thanks

...but I need to be sure that my macbook will not stop working if I leave the problem with the screen blinks.
Of course you do — we all need to be sure our machines will keep working properly. Unfortunately, there's never any certainty about that, even if one's machine is working perfectly right now. But if it's any consolation, I've seen nothing posted in these forums to indicate that the blinks commonly foreshadow anything worse, so I think you can be reasonably confident that your machine isn't at the start of a predictable course of deterioration.

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