Hi everyone I am a newbie so please be gentle. One morning my XP machine only booted the the XP screen and the blue harizontal bar just kept going in a loop and no further. Tried booting in safe mode and received the BSOD. Tried installing a fresh copy of XP to be told no drives were detected on the system. Have now bought a new SATA hard drive, and disconnected the old one. On boot-up the new drive is NOT auto-detected and the BIOS states that no hard drive was found. There is no setting in the BIOS to manual force a drive recognition. If I disconnect the cables attached to the new disk and reconnect the old disk the original problem is shown, which I am asuming means the cables are OK. The motherboard is an ASUS A8V Deluxe, and the new drive is a Samsung HD 502HJ. This is driving me daft and fast approaching a drop test of the computer from a great height! Any suggestions gratefully appreciated.