Hey mate thanks very much for your reply, &output=embed is already there.
This problems also happens on one of your site templates: Other, I haven't checked more. Check it out with Chrome, can you see the problem in the Contact section where the map is? What version of Chrome have you got?
Regarding GoMap I'm trying to make it working, but do I need to get a Google Api Key first?
Apparently even embedding a simple iframe map has become a problem