Proper struts action is not called if the....

I am running into a desperate situation. My application is a J2EE application using Struts. We are using FCKEditor to input text from user which will be stored in the database. If the content is normal the no problem, but when the content starts with an HTML tag then the proper struts action is not called.

e.g.
"My Message" or "My <strong>Message</strong>" works, but "<strong>My Message</strong>" gives error.

Any reason?

Thanks,
Sameer