I have recently bought a new (to me) PC. P4 1.8ghz and I have added a Seagate 160gb HD to it. All was well until the other day it stopped reading ether at the boot screen: 'Deteching primary & secondary..........none' etc etc. When I connect them to the PC, the PC stopps reading the 2 DVD drives and keeps the HD activity light on and does nothing. Why would connecting the HDs do this? and how can I get the PC to read them again. Im sure its somthing to do with the BIOS, I have checked all are on auto etc. Help!