I have recently, say about a week ago, started encountering a problem where my system freezes, becomes non-responsive, and loops audio. The only way to correct the problem is to shut down the computer and restart it. It most often occurs when I am playing computer games and running other programs (like Skype) at the same time, but I have been doing this long before the freezing started occurring without any sort of problems.
Also on another possibly related note, the computer in general has become more sluggish as of late.
I ran a google search of the freezing and audio loop and it lead me to believe that my RAM might be faulty. However, when I tested the RAM with the Windows Memory Diagnostic and it came back with no errors.
Computer Information
OS: Windows 7 Professional 64-bit
System: Gateway LX6810-01
RAM: 4GB
Processor: Intel Core 2 Quad CPU Q8200 @ 2.33 GHx (4 CPUs)
Video Card: NVIDIA GeForce GTX 560
Sound: Realtek High Definition Audio