Manually adjusting the slide duration to match the video was a workflow from Presenter 6 and older, as I recall. Since version 7 Presenter should auto detect the duration of the video and adjust the slide duration accordingly.
What type of video are you importing, FLV, MP4, or something else?
Is there any buffering on the slide before the video plays back?
The video files are MP4. Some are published from Adobe Presenter Video Creator, some are not, but the problem is the same across all of them.
Not sure what you mean about buffering – I am playing them back locally – either published or preview – when this occurs, as well as once they are posted. Sometimes when I play back the posted version it will return a buffering message in the lower left.
Ok, MP4 should be fine. If you can, I would test converting one of the videos to FLV to see if it makes any difference. Can't hurt to try.
As to the buffering message, Playing it locally shouldn't produce a buffering at the beginning of any slide, but if it did that may indicate a problem with the video.When delivered from a server (Connect or otherwise) you can start to see how the playback will work in the real world. If you are seeing buffering with the video, it could be a bandwidth issue, and may consume a few seconds of playback time on the slide, thus cutting the end of your video off. It may be worth looking at the bit rate of the videos and see if they are above 800 kbps.
Another point to make is how Presenter pre-loads. When you see the loading screen, the first three slides are being loaded completely. Have a video on one of the first three slides, and you may see a large loading time for your presentation. After those three slides load and Presenter begins playing, a new slide begins pre-loading every 3 seconds. So if you have a video on slides 4-6, the presentation may catch up to the the video's pre-loaded location can cause a buffer. Of course this all depends on the duration of your initial slides and size of you embedded videos. Something to consider at least.