Bought Saturday Asus A7N8X-E motherboard and a pair of 160 GB Hitachi Sata drives. On booting bios doesnt recognise drives as present. In fact just offers choice of usual Master/Slave setup for standard ATA 100/133 interface. Can't see any mention in manual or bios screens about existance of Sata interface at all! Am I missing something obvious, and yes I have the Sata jumper set correctly.