Yes I see that now, but the short clip that you link to Tono (sent to me by PM) I watched and saw nothing of the problem you describe. Considering the presentation is now in Adobe Flash format, it may be your player version giving problems, I would check on the Adobe website to see if you have the current version. Oh one other thing, right click on the picture before starting the player, move down to quality and make sure the high box is ticked.
Also link to that clip here so others may also view and comment.