I've added a new HDD to the system but it has not been given a drive label. Device manager read the HDD after first O/S boot, and sees properly what it is. It also states the drive is working properly and drivers are most recent. Yet I cannot see or access the drive (my computer, dos etc). Physically the connections are well. The HDD has no jumpers and is running off the slave connection of the cable. Bios however, states that group 2 is CD drives, group 3 is HDD drives and group 4 is networking drives. It also states that the main HDD is on the the third controller, on it's own, while the new HDD is a slave to the second controller where the master is the CD drive. Oddly enough, the group 3 HDD priority lists the new HDD as main, and the original HDD as secondary, yet the computer boots straight off the main(original) HDD without a hitch. The main HDD is also paritioned (safety recovery partition) so effectively it's using C: and D:. E: is for the CD. F,G,H,I are removable usb storage and J: is a virtual CD drive. I tried to take a stab at command line with "K:" but invalid.