For a good while now my primary hard drive has spent a lot of time accessing data when I'm not doing anything in particular. I can hear it now, making the hard drive noises that a drive normally would if you were telling it to access data but the only things I have open are Safari, Firefox, TextEdit and Activity Monitor. In activity monitor, both the data read and data written graphs keep fluctuating up and down. Is there any way to find out what process is doing all this data access? Any suggestions on what it might be? Its getting mighty annoying and I'm sure its not doing anything good for my hard drive. Sometimes it gets so caught up in data access that programs I use suffer performance wise.