Funny delimeter on top of pages

[agm]

I have suddenly got this funny thing appearing at the top of my pages:

 

?>

 

I was doing some work on the site this morning, received a server error, and now I have this at the top of each page.

 

I was not working in the header pages, in fact I was creating the embroidery tips page.

 

Could anyone please tell me how to get rid of it?

 

My site is: http://www.dekatzenembroidery.co.za

[agm]

No problem - found the culprit!

 

It was in filenames.php - i had an extra ?> at the end.