HP/Compaq :: HP DV6700 Laptop Sound

I have been having persistent issues with sound on my laptop.

The issues are:

If the laptop has not been restarted for more than a few hours, the sound begins to distort. This gets progressively worse as the laptop is left on, to the point that it severely distorts, and even movies, etc. (from my hard drive, not the internet) start to visually skip, in sync with the sound. Restarting the computer by any means, i.e. hard restart, soft restart, etc, fixes the issue temporarily, but as mentioned previously, the sound starts to distort again. At times, online videos skip ever so slightly, though this is not nearly as severe as the sound distortion. (This may not be related, as I have a lousy internet connection, but the sound distorts nonetheless). Additionally, this happens not only through the speakers, but through the headphone jacks as well.

I have googled around, and while I have found that there are known sound issues with the DV6700, none of them seem to match this exactly. However, I have heard that the media chip (I don't know the technical name) is known to cause issues, so I suspect this may be the problem. That wouldn't explain the temporary fix from restarting though...

I have installed/updated the drivers for my speakers, among other things. I also checked my system idle process, because I thought it may be a simple case of stressing the CPU. The system idle process is at 85, however, so I doubt this is the problem. I also e-mailed tech support, but naturally this was no help.