Everything looks the same as your screenshot. No javascript errors at all. The plugin simply wont work at best. I can drag the plugins around and move the position but nothing, i mean nothing, can get them to save in that position. At worse, ill try to add a new group or just move the position of a plugin and when I refresh, my entire backend and front end of the site is white screen of death. No javascript errors or warning
I am having a very similar problem. My site is http://hawkinsbiggins.com/honoluluphotographypackages/ and when I install your plugin it corrupts my wordpress site to give me the horrible White Screen of Death. I have to FTP in and delete your plugin to fix it. Something is wrong here…