I recently made a wiki for myself, but I have encountered a problem. I want to have this image as my background of my wiki: http://www.marketwallpapers.com/wallpapers/28/wallpaper-148640.jpg
However, when I try to upload it, it gives me a "wrong file size" message.
Can somebody help me? Can someone who knows how to fix it tell me what to do, or maybe a Staff Member fix it? Thank you.