iScreensaver 6 will attempt to keep synchronization across multiple monitors, by waiting until all screens are ready for playback. All screens will then start playing simltaneously. When it’s time to go to the next item (video or image), it will re-sync if possible.
There are a few cases where this may not work:
- When using the sequence in Shuffle or Random playback modes - syncrhonization is only posislbe when all screens are displaying identical content.
- When your sequence has only a single video item.
The problem with #2 is that iScreensaver automatically sets a single video item to Loop, since this is the most efficient playback method.
However, you will notice that when videos are looping on multpile screens, they may slowly drift out of syncrhonization.