Installed SmushIt two days ago and have been working to Smush 3600+ photos in media library. All went well thru page 70, then started getting error message "could not find" for all photos. Permissions on the folders in my wp-content/uploads structure are fine. Went to the Yahoo uploader page (http://www.smushit.com/ysmush.it/) and manually typed in the url to one of the photos that could not be found and it worked just fine. Any idea what's up with this?