I just built a new computer with a 80gb Seagate 7200.7 SATA hdd. My previous computer had a 7200.7 IDE drive which was very quiet. This new SATA drive is quiet so long as it isnt reading/writing, but as soon as I do anything that relies heavily on the hdd, like say run a virus scan with Norton, it gets pretty loud. Its like a clicking type sound. Its like the normal type of sound made when reading/writing that I have heard in all previous hdds that I have owned but amplified about 10x. Any idea if this is normal for these new SATA drives, or should I look into sending it back for a replacement?