I have produced a slideshow which includes a video clip. The clip is in mpeg2 format. The whole slideshow including video and sound will play on two og my machines including a laptop but on others will only play sound and no video. Can someone tell me what I'm doing wrong or what may be missing. PC running Window xp pro with service pack 3. the video file will play fine as a standalone outside of the slideshow. mpeg decoder installed. Any ideas?