When I try to work with sound, AM 10.5 crashes every time. I have made a sound file (wav) and have put this file in the sound library. When I, according exercice 7 "Can you say that", select the dope sheet, type the sound text in the box and klick OK, the dictionary does his work properly and all boxes are grey. As soon as I drag the frame marker in the timeline window, AM crashes directly or after some dragging.
WHAT MAY BE THE CAUSE ?