So after installing Security Update 007-1, I tried to open iChat like I usually do every morning, but something weird happened; within the span of about 5 seconds, iChat opened, connected, then closed again. No crash message, no weird errors, nothing abnormal. I tried a logout/login, restart, and repairing disk permissions, but none of these have worked. Has anyone else had this problem and does anyone have a solution for it? I appreciate the help.