I bought a drive of this guy too, but outside of eBay after losing an auction i bid in. I put the drive in my A4000 and it didnt work. I sent him an email and he didnt reply for a while before eventually getting an email saying to change some jumpers on the A4000's motherboard. I wasnt sure what he meant by this, but I thought something funny was going on. It has made me very wary of using eBay again in the future. :cry: