Column Locking

I found an interesting tidbit while playing around with the personalized views and in the Admin configuration, when a column is locked it can't be unlocked.  The unlock button appears to work, but when you go back to review the sort order or personalization the lock remains.  DOH!  A workaround for this is to lock an image column, which doesn't seem to support locking (good for now) so the lock goes away on the screen.