I had created an RSS feed option for a forum that was a fully moderated forum. When I selected under forum options to subscribe to the feed the software reports page not found. Other forums have the feed. The cache directory is there. I changed the forum from moderated to any logged in user can post and entered a test message, set cache time to 30 from 5. Still page not found. When I looked in the cache directory with my FTP client I found older files from April, a few from September. Not all forums have feeds. What would cause an RSS feed to fail? There was a time awhile back when my ISP was crashing the mySQL server. That required me to repair tables. Could another table be broken?