Problem solved. I just found a 'hidden' process running in Activity Monitor. If it weren't for the indication of 64 bit under virtual memory, I wouldn't have noticed anything. This is the first time that I've ever seen a 64 bit process running with root privileges. On top of that, it's hidden. Whenever I try to quit or even force quit it, it comes back. Should I be concerned? I'm little worried right now. This wouldn't have any relation to the sudden loss of several fonts that occurred a few days ago, would it? (I lost Century Gothic ) I did do an archive & install recently to try to fix the font issue to no avail.