Just built a rig and having issues with this card. i5 2.5k ... Mobo Gigabyte GA Z-68 AP-D3. Couldn't get video to come up at all with the GTX460 plugged in. Put in an old card and everything came up just fine. Uninstalled the old cards drivers, plugged in the GTX460 - nothing. Monitor won't even come on. The fan on the card itself starts running... just nothing posts. Help? Super-newb here trying to make this thing work.