This appears to be a problem with a particular version of the theme. I’m running two versions 1.1.6 without problems and version 1.2.9 with the problems discussed.
It looks like the theme doesn’t like any sort of scripting as I have tried google ads and the code is stripped out, whereas a simple reference to an image file works OK.
We need a fix from the author
Also on another note the scrolling slideshow at the top of the page doesn’t show on an iPhone when using version 1.2.8 (author site) or 1.2.9 (WordPress site)