I've had my Droid Incredible for a few days now and am finally taking the time tonight to get familiarized with and personalize it. I've been setting up the "Droooiiiiiid" sound for all of my notifications; however, whenever I unlock my phone after sliding down the slider, it makes a pulsing sound. I've searched for that sound and haven't found it on the phone in the notifications list. My "overall" notification sound is set to the "Droid" sound (it's also set to that in the messages section). It plays correctly for all other notifications. I have no idea what that sound is, or where it came from. No one has an answer for it online, as far as I've searched. Am I just missing something about the unlock feature?