[Zope] siteroot, img spit out bad html...

Hi, hope this hasn't already been covered. My siteroot prints out the following: <base href="http://www.bitmap.net/" /> Similarly, images come out: <img src="http://www.bitmap.net/title_png" alt="root title" height="44" width="274" /> Both have a pesky '/>' at the end. That slash is not syntactically correct. How do I get rid of it? graham.