I erased the data on my hard drive through disk utility, started to zero it out but didnt let it finish.......Now I'm trying to reinstall the operating software and when I get to 'select a destination', my hard drive is not in the box...........I still see it under disk utility but I dont know what to do from here, at this point all I care about is reinstalling the operating software............any help would be most appreciated, right now time is of the essence..................thanks.......