i’ve done all that and nothings worked, i’ve print screened my vegas pro and i’ll explain best i can what’s going on…

So, the play/stop buttons at the top in the middle (1)are the only things i’ve got to be able to play the video, and when i click them, the original video plays on the screen to the right (3), but on the time line you might be able to see, i’ve slow motioned the video, but despite that, it still plays the original version of the video:/ i got vegas on trial, for a bit a while ago, and had no problems with it.