I just purchased megaslider and installed it on a dev site to test it out. I get a WSOD on the edit page. I do not have jqueryupdate enabled, as I have not needed it for anything else so far. I am also using panels/panelizer as I do on all my sites. I am using media 7.x-2.0-alpha4+37-dev, and need to use the 7.x.2.0-dev version. I do not know if this is the issue or not. I really need to have this working this week asap. I am excited to get it working, seems like an awesome mod!