Why won't any Mini DisplayPort to VGA adapter work with my 2012 13" MacBook Pro?

Hello!
     A few month ago, I purchased a new 2012 13" MacBook Pro. I quickly realised that my non-Apple MDP to VGA adapter was not working, but put off the problem as it wasn't neccesary -- and I thught that the adapter was to blame. However, after using the adapter sold by Apple, I can asafely say that the problem is with my computer. In review on the product, several 2012 MacBook Pro users mention this. I was hoping someone here would be able to point me towards a solution! Thank you.

I tried the Apple miniDisplayport to VGA in a Thunderbolt MBP and iMac and they both worked. Same for the Apple miniDIsplayport to DVI.

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    Message was edited by: nappy

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