Problems installing CdRw drive with DvdRw\Cdrw drive

Hi, when I install the Dvdrw\Cdrw on with the existing Cdrw’s MB connection neither one is acknowledged in XP. I think I tried every config option in setup. Any ideas!

Check Bios Settings, put DVD as primary and CD as secondary, use udma 66 cable, If possable put drives on different ports ( IE one with HD ) drives do not like to talk to each other on same pci port,
Good Luck !