windows 7 and netgear dg83g v3 wireless router

i have a problem with my computer and my wireless rputer, the problem is that when my computer is turned on tge ethernet port numer 1 light on my router is green and that is how it is supposed to be, however when i shut my computer down the light for ethernet port 1 goes orange, but when my computer get switched it changes back to green on windows 7's login screen.

this was working fine a couple of days ago howevr it has just started happening, i have tried the lead in different ethernet ports on my router and tried using a different ethernet cable. i have aso u ninstalled and reinstalled the driver for my computers ethernet port, my ethernet port is built in to my motherboard.

os: windows 7: home premium, 64-bit
router: netgear dg835g v3 with latest firmware

I am not using wireless, my computer is plugged into the router using an ethernet cable

the netgear pdf manual for my router says that the orange light ion the Ethernet port goes orange (or amber) because the router has detected it as a 10Mps device instead of a 100Mps device, however when the computer is running the router sees it as a 100Mps device but when it is shut down it is seen as a 10Mps device. how can i make the router see my computer as a 100Mps device all the time even when switched off?

well windows 7 has automatically updated the driver but i have rolled back to the previous in windows and still did not work. however i will try downloading an older one form the manufacturers website

im not sure if it is a built in driver or not :-/
i have attached the screenshot as an attachment

i have now got it working correctly by changing the "Speed/Duplex settings" from auto negotiation to 100 mb full duplex