Hello,
I have been reading about the rash of problems about screen flicker and video problems with people running this chip. I have the same problem. I have updated the drivers to the latest from Intel using the driver update tool. I also ran the Intel Processor Diagnostic Tool and it passed fine. I am still getting screen flicker, although much less then when I started. My biggest problem is watching youtube videos in full screen. There's lots of ghosting flickers of random colours and static. I have the same HD4000 graphics on my laptop and I can watch the same video with no problem.
So far I have switched motherboards (new board), switched RAM around in all the combinations (1 stick, 2 sticks, different DIMMS), OS fresh install, but no luck. Problem is still there albeit getting better with each new driver.
Thanks
Asus P8H77-M/CSM
Intel I7-3770
Corsair Vengeance LP 16gb (2x8gb)
Samsung 840 Pro SSD
Win 7 Pro 64bit