Hi. I just set up my new computer. I have an Asus A8V motherboard with the onboard Yukon Gigabit NIC. Internet is working and everything but when I go to configuration I don't have an option for 1000MBs. The max option is 100MB full duplex. I have the latest drivers and everything. Is there a reason why I'm not having that option? Will it even make a difference with a cable internet connection? Thanks in advance.