Hi all. I have this problem with my Sata optical drive... My raid setup is 3 WD velociraptors in Raid 0 My motherboard is an ASUS p5e deluxe with the latest BIOS update. I added a Samsung optical drive wich also is Sata, but my computer doesn't recognise it propperly, sometimes a can use the drive, but sometimes I can't... Drivers are up to date, Intel Rapid Storage Tech. is also the latest one. Does anyone have an idea?