Hi everyone i have 13" i7 MBP. I bought 3 Thunderbolt-VGA adapter (one of is original). But i can use them only 1 time. I have samsung gh19ws monitor. When i plug the adapter first time verything is ok but when i close the mbp and open again there is no display ??!!!! I am gonna get crazy. Please help please. I tried Pram reset, all software updates, frimware updates. I am sure VGA cable and Monitor is working ! but whats the problem i am gonna kill my self please help me !!