This is a strange problem to me. I am looking at a Dell Dimension 8250 because the headphones "won't work." I have normal sound coming out of the speakers, so I plug the headphone jack into the speaker output... but volume is uncontrolable and at about half the level it should be. Tried just about everything to turn the volume up but nothing works. I have tried plugging the headphones into the front headphone jack. Any other suggestions? I know that I am missing something easy. (I have tried all of the simple things).