Headphones don't separate left and right audio. Audio settings are not set to mono. In the configure option,it shows that it's playing only through left and right. In reality, it plays about 40 percent through the speaker it's not supposed to. I've tried multiple headphones. with the same result. I've tried the same headphones in other computers, they work fine. When playing back through the laptop speaker system left only plays left and right for right as it's supposed to.