I was loading a song from youtube to our service and added it to the scheduler, it put it as the the last slide, I clicked and dragged it to the spot I wanted it but then is cascaded all my slides,I could not get them to un cascade.  I had the arrow on the left and if you clicked it the slide I needed was below it as a sub slide, from that point on I could not get the slides to display properly.  - I would think there is an undo feature but not sure where it is.  ended up doing all my slides in a new schedule, but that was very time consuming. any recommendations? 

Dan Jozwiak, Redeemer Lutheran Church. . 

Thanks, but now when I open EW on the left it has the little arrow, and still cascades all my slides under it, causing it not to display properly, is there a setting that I need to turn off on that workstation, for if I open it on another workstation all is okay.  I just need to find out how to turn off remove the arrow on the left of slide icon to stop cascading my slides under it.