Your problem is that you ARE loading a DOS CDROM driver. Your box is set by default to start with a DOS driver for the CD. Open your config.sys using Notepad, and edit the line in the Menu sextion from "menudefault=CD,30" to "menudefault=NOCD,30". Save the file and restart the computer. Your box will now start without loading a DOS CDROM driver and Windows will be able to load its own (faster) 32 bit driver. Device Manager should show the Secondary Ultra ATA controller without the exclamation mark and your CDROM and CDRW will be visible again.