Good afternoon. I installed a fresh copy of Snow Leopard on my current-generation white MacBook. After I installed the OS, I decided to turn on FileVault for my user account. I went through the process of turning it on. I saw the screen that said "Creating a FileVault". Then the screen went blue with the black "spinning circle" that you see during the boot-up process. It has been like this for an hour. I am afraid to turn it off and screw something up. Is this normal? Does it actually take this much time to turn it on?