Hi, I recently build my first computer and am having problems getting it to connect to a monitor. The build is a gigabyte GA-F2A88XN-WIFI mobo with dvi and 2 hdmi ports, a AMD Athlon x2 370k Richland cpu, two 4GB crucial ballistix DDR3 ram, and three fans (two running off the psu and 1 running off the motherboard).When I switch it on everything has power, front and back usb, fans, cpu cooler but no video connection just a black screen. Does anybody have any ideas as what I can do?