I just formatted and installed afresh Win7 Ultimate N on a WD1000GB. Since setup screen it recognized only 3 of 5 disk drive (all of same HDD). Before that I resized two of the drives with `EASEUS Partition Master 8.0.1 Home Edition` but I did so for the drives he actually recognized. (I accessed those drives through another OS which is installed on another HDD). It would see them in disc management but it can`t assign drive letter, it says : Disk Management Console view is not up-to-date... even the program can`t assign letter ot mess with the size of the drives. I can fully access the drives through my other OS (xp).