I upgraded my mac mini core2duo from 120GB to a 320GB hard disk. After upgrade, mac mini can't seem to read the disk properly and it shows the capacity as 2.3TB and gives an input/output error when I try to erase the disk. It show correctly the description of the new hdd (WD Scorpio Blue) but there is no hdd to install MacOS after the boot of the CD installer. Could I try to format the hard disk in an external bay and then to install it internally? Or maybe I have to change the HDD with another model?