I have a wired and wireless nic in my pc. They were working up to a few days ago and then not now. I tried moving them into different pci slots and they reappear again, only for a few seconds and they dissapear of the system again. They appear in device manager once i have changed there slots. It lets me install drivers then they totally disappear from the system, I cannot see them in device manager, v, weird. Any thoughts?