thats the headers already sent error that is talked about in the link i sent you.
it's caused by a blank space at the end of line 4:
delete the blank space at the end of line 4 to remove the error.
Your friends over here at WebAssist! These Dreamweaver extensions will assist you in building unlimited, custom websites.
These out-of-the-box solutions provide you proven, tested applications that can be up and running now. Build a store, a gallery, or a web-based email solution.