Hi All
Had the same problem, symptoms and checks as dcarny, Nothing was happening until i added <trust level="Full"/> to system.web in web.config.
works now, although i was getting a error message about some thing "not returning a JSON", untill i added some slides.
Q. for support, Is the source code available for this plugin as i'd like to see whats happening in the background and would prefer not to run in full trust mode.
Hope this helps...