Patch 4.01 update: There seems to have been a change made to this behavior. I was seeing the same issue as everyone else with my G710+, where the lights would only turn off when tabbed into the game. However, with the new patch, the game will turn off the backlighting on my keyboard and it will stay off regardless of which program I'm actively using. I have to actually reconfigure my keyboard to turn the lighting back on, and then it stays on until the next time I start the game.