I have recently installed Dreamweaver CS3 and created a site. For this site, I wish to enable synchronization. However, when I go to the the Site Definition window (Click on "Site" from the menu, then "Manage Sites," then select my site and click "Edit," then click the "Advanced" tab, then choose "Remote Info" from the options on the left), the option for "Manage synchronization information" is grayed out. As a result, the "Synchronize" button (the two arrows running in a circle) in the "Files" section is grayed out, as is "Synchronize sitewide" under the "Site" menu.
How do I fix this to enable synchronization?