When a RSS feed generated by a Moodle Forum is viewed by Apple Computers RSS Visualizer Screensaver, it displays the RSS feed as being published on December 31, 2000. This is a result of the Moodle RSS feed missing the <lastBuildDate> key in the RSS feed.

To have the feed display the correct date the following line needs to be added to lib/rsslib around line 170 (Right after printing the copyright)

 // Insert Last Build Date
$result .= rss_full_tag('lastBuildDate', 2, false, gmdate('D, d M Y H:i:s',time()).' GMT');