Hi, I want to capture a game with this program. Firstly, i started the capture and used alt+tab and changed window. When i turn back to game, i didnt use capture key. I pressed many time but it didnt work. After that, i use windows key to change window. i returned the game and capture start/stop is worked well. I tried one thing more. i use windows key again but i clicked on another window like that google chrome or something else. Then i returned to game and capture start/stop didnt work like first. Furthermore, i had fps drop. By the way, i use buffer too. Sorry for my english if i have mistake.