Intervals are anything from hours to almost less than a second. So, I have an Asus N56VB laptop, running windows 8 64bits, and for a week or so now, I keep getting this pop-up, which I think is quite common judging by the number of posts related to it, saying 'You just plugged in a device from the audio jack.' alternating randomly with the 'unplugged' version. Realtek HD Audio Manager 'You just plugged(/unplugged) in an audio device problem'.