The LMS determines how the course is launched. It's probably a setting on the course within the LMS to how the content is presented (and to what size window to put it in).Like I said before ... that option while publishing tells the content to try and close the window when you leave the content. If you run the content in the LMS' window, then obviously you don't want the content to close the window. Some LMS' would not close the window of launched content (they should ... they opened it) ... that is why the option was added for publishing.Tim