Mine has the exact same problem.... the digital out even has interference, if you can believe that! I can get it to lessen if I fiddle with the settings, but you have to cripple a lot of the outputs of the internal sound card to do that ( if you can cripple that already crippled sound card any more than it already is). That along with the lack of digital out surround support has led me to the decision to get the USB Audigy card... I will let everyone know how it goes when I get it. On a laptop like this I would have thought they would throw a decent sound chip on it!
Originally Posted by Go-Omaha
Actually it is not a click; but rather, a very high pitched short burst tone. I have this on the left headphone. I disabled all input and output sound devices and volume and the condition persisted. Looked down at the keyboard and noticed that on the longer "bursts", that the HDD drive was blinking at a rate corresponding to the errant tones. I launched diskkeeper and started a defrag. Yep - that's the cause. Now to figure out if it is the actual drive, the controller, or just an unshielded/mispositioned cable that is picking up the noise. It is really loud; however, it is annoying. It only happens on the left channel, the right channel is as silent as can be.