I read in the Safari forum on the Apple site that SpeedDownload was the possible culprit even if you were not using it or had ever installed it and trashed the application. The recommendation was to run the SpeedDownload uninstaller. I did just that, ran the uninstaller and emptied the trash. A SpeedDownload plugin was still active so I had to do a restart to empty the trash. It fixed the problem. Downloading Camino as we speak.