I installed Maxtor 20 gt harddrive by copying my old harddrive in it.2 problems : bios finds new harddrive only as primary slave, computer starts/works ok but now cd-r does not read cd:s.Motherboard is old Zida, no bios update(?) available. Settings are auto in bios. I have tried jumpers in all positions, master,cable but only slave works. Harddrive is alone in ide1.In ide 2 are cd-r and cd-rw. Any ideas?