Nav, sidebar and Images won't view on mobile

Hi
I recently updated to 3.4.2 and when viewing the site on my iPhone the nav, sidebar and image don’t view properly. On the computer and ipad its fine but not on iphone.
The nav is is list form, the images show a blank box with border and the sidebar isn’t there at all.
Is there a setting I am missing, it used the appear fine on the old wordpress i was using.
Cheers

[closed – continue with http://wordpress.org/support/topic/nav-sidebar-and-images-wont-view-on-iphone?replies=5 ]