[Vaupell]

Sorry dont own or intend to own a mac, so unfortunally i cant troubleshoot.

But im sure this is more related to the weather thingy.
cause if its only the weather thingy and nothing else then... well weather thingy.

Got a few friends who use mac aswell, and it shows fine otherwise
using normal html and css etc.. so almost positive its the weather thingy..

You could test by creating a blank widget and input the weather there,
add it to your page, click img as above and see if shines through there aswell.