Hello. I have DFI lanparty UT NF590 SLI-M2R/G AM2 motherboard with an AMD Athlon X2 5000+ (AD50000DJ22GI) chip. 4 gigs ram, 550w antec PSU Gigabyte 9800gt GPU. 40G sata HDD and wireless card (have tried two different Wifi cards). This is a "new" build from parts I have had. It boots properly and seems to run fine but will not connect to an ethernet cable or even recognize that it is plugged in. I have tried to connect via wireless network card as well but that is also not working. I have tried in windows & and Ubuntu and cannot seem to get the system to recognize the presence of an internet connection and/or hardware to support a connection. What am I missing? please help. I really want to get this build online and usable.