Once it restarts, how do I get back to our dialog?
John, in safe mode all was AOK. Now that I restarted, so far no problems either. I had tried restarting before with no luck. This behavior did not start until I updated to mavericks.
The only other thing I can think of is that Time Machine had not backed up for about 10 days or so as I had disconnected my external drive. Any chance it was cycling waiting to do a backup? I had plugged the drive in before I contacted you but was still seeing the same behavior at that point.
OK, that is the most plausible thing I have read so far. There are a few web postings regarding this issue, and some referred to Stuffit and Remote Desktop, which I am not using. I saw some brief reference to Time Machine, but then I could not find it again.
Well, all is normal now and Time Machine is doing a backup so will leave it at that for now.
Thanks a lot for your guidance!