I bought an HP m8307c running Vista Home Premium a few months ago and ever since I bought it, the hard drive has been making a weird humming noise whenever it's doing something. The best way I can describe the noise is it sounds similar to the humming noise you would hear when you change the channel on the t.v. to a channel that's off the air, a constant high-pitched hum. Hope that makes sense for somebody. At times the sound is constant but other times it's intermittent, it seemingly depends on the activity going on in the hard drive. I was wondering if anybody else has had this problem and if so, is there a way to make it stop? Thanks in advance for any help.