Hi - I have tried to replace the hd in my Sony VGC-M1. I bought a Maxtor DiamondMax 21 - 160Gb - PATA - ULTRA ATA. But in the bios I get the message as in the subject. I get an amber light next to the hd symbol. I have put the jumper on the first pins - as this is a master (and only drive). What am I doing wrong??? Thanks.