So i gave up on the chinese chassis, so i took it back to the seller and got a working one instead, now, it works, and i feel happy, however, when i was making some tests,the monitor was hooked to a computer via a vga cord, i get good stable image , good colors, but, it was scrolling a little bit, so i tried to get a hold of the controllers, and when i got them i heard a loud loud pop, it was very loud, it scared me, so i thought, ---steaming pile of meadow muffin---, i ---fouled up beyond all recognition--- my monitor, BUT, nothing happened ,no smoke , image on the monitor was the same, nothing happened, so after taking everything off, i inspected the chassis, and couldnt find any explosion signs of any kind, so thats pretty much my question, what can cause a pop so loud, but it wont damaged the image? i turned off and on the monitor after that, and it was still working. Thanks for any advice.