Currently Being ModeratedFeb 11, 2013 6:35 PM (in response to PCMech)
Here is a quick video showing what the display is doing:
Currently Being ModeratedMar 22, 2013 6:59 AM (in response to PCMech)
I have similar problems. I use the thunderbolt port to have dual screens for my MBP. I get little squares here and there and sometimes when I try to start the computer from sleep it just goes haywire. flashing squares all over.
Do you think it's thunderbolt issue?