Have speakers that worked on old computer. when I'm on the speaker/headphone tab of the dell audio setup, and click the speaker icon... there IS noise coming through them. But no noise when I try youtube or even a video on the dell website. The sound is not muted, and the when I click on the sound icon down by the clock/date, it appears that there is sound coming through. Speakers are on, volume is up. What is going on? How do I fix it?