I have an Asus A8N32-SLI Deluxe mobo with onboard sound. I also have the Aerocool Extremengine 3t case. All drivers are up-to-date. When I plug in my headphones to either the front headphone jacks on the case or use the line out port on the mobo I hear distortion. It seems to be making sounds along with the HDD. Like the more HDD activity there is, the more distortion there is. I have also connected speakers up to the system using any audio port and it too has distortion. I figured it may no be grounded right, but how can I ground it better? Can someone help me figure this out?