Hello all I just bought a new Samsung Monitor (S27A950D, http://www.samsung.com/sg/consumer/pc-peripherals-printer/monitor/led-monitor/LS27A950DS/XS) and I'm having some issues connecting it. I purchased a Thunderbolt to HDMI cable, and everything connects fine. I'm currently typing on my monitor. However, the only problem with it is that I see pixels flickering all over the screen and I think I've eliminated the problem down to my mac, and not my monitor. Here's how I did that: 1. Changed the refresh rate in the settings from 60 hertz down to 24 hertz, the flickering stops. 2. I turned on the monitor without connecting it to the computer, I get a nice, dark, and non-flickering screen. So, I'm almost positive that it has to do something with my mac. I also tried it with my friends MBP, same model, same cable, and I get the same issue. I'm not sure if this is a video card problem or the cable problem, I need some guide on figuring this out please!! Thanks!