So I have the first rev B MBA model and the drive is taking a crap on me right now. I ordered one Runcore from ireland to the USA and it didnt work for me so I'm wondering what I should do. I returned that one so I'm left wondering what vendor should I seek out? Also, if I want a slow ass drive just like the one that this POS came with where would I get the right one? And not be stuck with one thats made for the Rev As?