[web2py] Using static files in view confusion

[Simon Pickles]

Hi,

New to web2py and having trouble with simple HTML in a view. In my 
default/index.html:


{{=IMG(_src=URL('static','images/map420x200.png'))}}
<img src="static/images/map420x200.png" style="border: 2px; width:420px; 
height:200px;"/>

The first line works, rendering the map png. However, the second HTML 
equivalent doesnt. The bordered box appears empty then disappears. Is my 
path wrong?

The app is just created using wizard, and default layout.

Thanks

Simon