Radeon HD 4670 1GB AGP/Sound and animation gets messed up

  I have recently joined and normally read on a regular basis on forum posts.
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I have been having a performance issue with my graphic card which includes it doing strange things to videos or any animations making them extremely low frame rates (around 5/second). And also any audio playing will start making popping noises through my speakers and also making the audio speed quicken but at the normal pitch.

I tried changing resolutions on the screen, no effect. I tried making the card go in to Optimal Performance and still the issue persists. It not only occurs in any game that I play, but it also does it during YouTube videos that I play. I can play them in 240p and it will still occur, though it seems to only do that whenever each pixel is changing colors more rapidly such as if there is a moving background. It even occurs in the operating system (Windows 7 Ultimate 32-bit) such as whenever I log in the sound that it plays during the fading of the screen into the desktop the sound gets garbled up and plays at a much faster speed than normal.

I first suspected that the HDMI sound output was conflicting with my Sound Blaster so I disabled it and found that nothing happened. So then I uninstalled it and still nothing. I updated drivers on both the graphic card and the sound card and both were the most updated. I tried the hotfix and still nothing. I tried replacing some .dlls to older versions that were known to cause issues with the sound but *sigh* nothing...

Heres my dxdiag http://www.4shared.com/document/VxW-TDBu/DxDiag.html