I'm trying to encrypt a hard drive using Lion 10.7.2, but I am having some issues. I tried using Disk Utility in the following way: 1) Open Disk utility and select drive with the external hard drive size and name. 2) Click on the erase tab, and choose Journaled and Encrypted. 3) Hit erase, and choose a password. 4) Wait until hard drive is erased and encrypted. I followed these steps, but Disk Utility keeps crashing in the middle of the process. Thoughts?