404 error message

First, I'm not certain that this is a Norton issue.  I have a web site that I keep getting a 404 error message.  No body else gets this error, only me. It's our local sailing web site.  I have been on our club Yahoo page, and no one is experience any problems.

I thought that maybe "Internet Security" was somehow blocking it.  If so, I haven't found out how or where to remove any blocking feature. 

 

Any thoughts?

 

NIS 16.5.0.134

 

[edit: Changed subject to reflect issue.]

Message Edited by shannons on 06-13-2009 12:14 PM