I have a Dell Dimension MCE 8400 that I ordered with a single drive. In retrospect I should have ordered it with 2 drives and without MCE but that is another discussion. I am wanting to install a new OEM WD Cavier SATA 160 with dual boot operating systems on the same drive but partitioned, XP Pro and MCE. I have installed the WD drive as the second drive (in position 1) and made a partition of 40 GB. The drive is seen by the system. I reboot the system and go into setup, disable the Maxtor SATA drive (one delivered with system and in position 0) change the boot order so it boots from CD, save the changes. I boot the system with the Win XP Pro CD, and in the FDD I have WD SATA drivers. The system boots, I hit F6 and it looks as though it is reading the SATA controller drivers. Needless to say the system doesn't recognize that a hard drive is present. Please help!!!!! If anyone has any ideas or suggestions it would be greatly appreciated.