Flash MX- getURL

I need to figure something out.
On frame 90 of my timeline i have an action in a blank keyframe on it’s own layer. This is the code: getURL(“main.shtml”);

When I place this swf and page online I get the following error:

http://www.3mexicans.com/guardian/undefined

"The requested URL /guardian/undefined was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request."

Any idea why my flash movie redirects to the link.

Any help is greatly appreciated.
And trust me, there is a main.shtml page on the server.

Thanx,
anavarro@3mexicans.com
3mexicans.com