So i made a thread a few weeks back about my mac not recognizing my new WD scorpio blue HDD...after some research i found out that the mac has the SMS which prevents it from reading hard drives which have SMS built in...So i returned the scorpio blue and got a scorpio black which does not have the SMS...yet it still does not recognize it when i attempt to install snow leo...Any suggestions? im very close to dropping it off at a tech place to get checked out...but rather fix the problem on my own to save some $$