I am having an issue with the sound on my laptop. It will play videos and music, but at some point the sound just....freezes. It is like when a CD has a scratch and it plays the same two words over and over again. Most of the time the screen is not frozen and I can click to exit out or shut the computer down. The sound, however, does not stop when I shut it down or unplug it. It only stops when I remove the battery. Any suggestions would be appreciated.