I have a 50-slide presentation. Eight slides have flash files (.flv) of a person talking. When previewing, the slides with the .flv clips play fine. But after publishing, the video and audio don't match up. The audio plays smoothly but the video doesn't keep up and is choppy. The .flv files were encoded and exported at a bitrate of 256kbps and a frame rate of 29.92fps from Adobe Premiere. The OS is Windows 7. How can I get the flash files to publish smoothly?