I just finished a small format build today. Gigabyte GA-H77N-WiFi, i3 Ivy Bridge processor with Intel 4000 graphics on the chip. Case is Lian Li PC-Q27 which is pretty small. I got everything installed alright and when I started installing Windows I notices the monitor had small horizontal lines running across at irregular intervals (the monitor is a NEC with DVI input and is fine as it works on my main machine). The after doing the Windows installation I installed the Intel drivers from the Gigabyte disk, planning on updating the drivers following a connection to the Internet. After doing all the reboots to make sure the driver installs were OK, the lines were still there. When I went to do the final Windows update there was an Intel update for the video. I updated and when I restarted the computer nothing comes up on the screen, not even the Gigabyte menu. Everything else seems to be working: PSU, CPU fan, Windows seems to load from the SSD as I can shut the computer down using the keyboard instructions. I really need some help figuring out if this is a MoBo or CPU problem. Any suggestions????