I am reloading Windows 7 Professional on a Fujitsu Esprimo P556. After the initial setup is complete, I cannot connect to the Internet. I went into Device Manager and under Network Adapters, there was a yellow triangle next to "Intel 8255x-Based PCI Ethernet Adapter (10/100)." The computer couldn't find a driver and when I downloaded the driver from the manufacturer website it still couldn't find it. Is there a way to resolve this issue?