No wifi networks

I have just purchased a retina MacBook Pro 15" and evrything seemed to run well, I have managed to restore my old system on this new computer and all of a sudden my wifi adapter stopped seening any networks although there are at least 2 of them around which are seen by my iphone and Macbook Air running a Snow Leopard. I have tried everything, removed all devices from the network menu and installed them again with no luck so far. Can anyone explain what it can be and how to fix it, alternatively, before going back to Apple, can enyone suggest how to test wifi adapter for consistency with some kind of software or else.
Thanks

Hi Clinton,
Thanks for your fast reply. I've done as you have suggested and got the report. I haven't done anything else as I'm not sure I'll do the right thing. I'll try to talk to Apple and see what would be their feedback. Meanwhile if you have any other suggestions I can try and do feel free to post it here.
Thanks & regards
Sergei

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