I installed my CD in my computer. It loaded with a picture, but with no sound, so like the instructions, I loaded it with my computer's DVD and it worked great. While playing, I hit the "X" on the upper left corner of the bottom tool bar (FF, RR, menu, time count, etc.) so I could get a full screen picture. It is no longer on the CD. Is it possible I erased it? I have to use the keys on my keyboard now to move from chapter to chapter. Can you help me find it??