I run WIN XP Pro on a Dell desktop that has two hard drive. I recently installed a CD drive and upon rebooting, the secondary drive (D), although recognized by the startup (BIOS), is no longer present when Windows finally opens. It's not present in the device manager and all shortcuts to it are null. All the bables are correctly installed and I've tried rebooting, re-installing the drive to no avail. Any ideas what might be going on?