I am having problems with uplaoding images via zip files. I am using wordpress 3.3 and I get an a failure message when creating Thumbnails.
Ok the thumbnails work. Now I get this when I upload a new gallery in a zip..
IMG_4856.jpg (Error : Unknown file format)
Never used to get these problems. And also the its still saying the wp_head() is missing when its in the header.php for the theme.
See this other thread for more info