Hi, I have an HP a6230n Pavilion, the drive crashed and I put in a new western digital WD5000. It showns up in the BIOS fine, but I cannot restore the system from the CD's HP sent me. O/S is Vista home 32bit.. I changed the boot sequence to CD first, still noting,, keep getting the DISK BOOT FAILURE, INSERET SYSTEM DISK AND PRESS ENTER message... Anyone have experience with this? Wondering if I have to by an HP drive.. Any help would be greatly appreciated..