Acer Aspire 5720
Vista Home premium
any other details needed just ask!
When playing back any video or audio content:
mp3s in windows media player, video clips on youtube, downloaded mpeg or .mov videos, DVDs straight from the disc drive
the sound gives out a crackling sound (honestly sounds like a needle scratching across a vinyl record!) and the audio either stops or continues momentarily, and if playing video, the video plays back in slow motion, without audio!
Sometimes you can re-start the video but it always ends up with the same problem.
I have re-installed latest flash player & directx without success, but stopped short of updating drivers because I thought I'd ask you guys first!