I set up a gallery on my website and the thumbnails are meant to be generated automatically from the selected featured images. The thumbnails are supposed to remain static when you hover over them and then the full image is to open in a light box once you click on the thumbnail. However, it seems like there is something wrong with WordPress and it's ignoring the theme's command to do the cropping etc. and when I select a featured image I can only select the full size version, not the full one. As a result, the gallery looks funky as when you hover over a project on the overview page, the initial thumbnail is zoomed into the top-left hand corner of the image and once you hover it zooms out to a stretched version of the image (see here http://www.unitech-engineering.co.uk/projects/ ). When you refresh the page, it goes back to the initial zoomed in preview. I've replaced most of the wordpress files and re-uploaded them via FTP hoping that it would solve the problem but it hasn't. Any suggestions?