Can't get my PC to recognise GPU or Ethernet cable.
Ok so earlier today I built my first computer and despite a couple of niggles, all went well. I've installed windows 7 and all the components are functioning, however when I put my Ethernet cable in, and nothing happens! I ran the software for my router but that couldn't detect a cable either. Also, when I tried installing a game (Oblivion) it refused to run and it said I was using a generic vga adapter as opposed to my Sapphire 6870 which is properly installed. Why is this happening? Apart from a rough cable management internally my computer is fine. Any help would be greatly appreciated.