Definitely an odd one. Not serious unless somebody tries to uses a statement that includes a percentage.
Posting anything by anyone in the comments section, or if I edit a comment while logged in, with the % character results in:
The requested URL /406.shtml was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request."
Just posting the % without anything else results in the same problem.
I found some reference to this error message relating to "Im receiving an error 406 message in my web site". See http://secure.plusplushosting.net/knowledgebase/1018/Im-receiving-an-error-406-message-in-my-web-site.html
Any help would be appreciated. Site: http://www.jonathanblaine.com/wpress I use shared hosting.