係 ICT 有關 Movie Maker 既一條問題：

Question: Mark has edited a video using Microsoft Live Movie Maker and saved his work in a WLMP file at school. When he opens the WLMP file at home, a 「三角形感嘆號」 sign appears on all the frames. State two possible reasons on why it happens.

即係喺 movie maker 右邊個工作欄入面，每一格都有一個黃色三角形既野

希望有人能解答 ~

佢冇帶埋條片用果D resources (e.g. raw videos, sound tracks)番屋企