Web Object and Player - odd behavior in 13'
It appears that Web Objects behave a bit differnently in 13' than they did in 09'. In 09' version, openning the Web Object in the slide without the navigation... the WebOject would show center of screen and fit nicely within the slide. In 13', if you select "off" for the Navigation items, the Web Object opens off-set and does not fit nicely within the slide.
Removing the Navigation items (Slide Properties -> Menu - "off") seems to result in boarders of the player expanding rather than resulting in a larger screen area. In 09', the available content area expanded a bit which enabled a bit more content viewing area.