Re: Inspiron 1545 - Random clicking/popping noises
I had not previously heard of a symptom of noises while browsing the hard drive (does that mean when you are using Windows Explorer?), but you can check out the tips in the thread Choppy/Skipping Audio Workarounds. Those noises are more common with Vista than XP. You will need to reinstall the audio driver while testing out the workarounds. There is no other audio driver supplied by Dell for your machine.