Hello, I am using a Dell Optiplex 745 with Windows XP Media Center x32 installed on it from off of a disk, and it will not recognize the Broadcom® 5754 Gigabit Ethernet LAN built-in network card. The Hardware Manager does not recognize it and lists it as an 'Ethernet Controller' in 'Other Devices', as pictured, but recognizes my functional Realtek USB Wireless Adapter. Whenever I try to plug LAN cables into the port, my computer does not recognize them and will not allow me to set up a LAN connection, as it thinks I have no network card. I have looked for drivers on Google, but have found nothing useful. I do not know where my XP Media Center disk has gone, so I have not tried to find any drivers on there.