I am trying to upload an updated version of my theme to wordpress, but every time I try to upload it, it says "Are you sure you want to do this? Please try again." and doesn't allow me to do anything except to try and upload it again. I have tried doing this several times in a row, with no luck on any attempt. I even tried using different web browsers thinking that it might have something to do with that. I downloaded it from ThemeForest, and am uploading it in a zip file, so I know it's not the type of thing where I am not doing that wrong... Any help or pointers on what I can do or if there is a way to "force upload" of some sort?