I have five sites and, over the past week or so, have received plugin update messages in the wp-admin panel. I have clicked on them (one was youtube video, the other secure wordpress) and received the following message:
Downloading update from http://downloads.wordpress.org/plugin/youtube.1.0.3.zip…
Download failed. Not Found
Actions: Return to Plugins page
Why would I be notified of an update, but no download found?