Playing multiple videos and keeping sync?

Hi,
I've got 3 videos (.avi wrapper) from 3 different cameras all synced together. When I run all 3 with seperate Quicktime apps they fall out of sync with each other (after 10 minutes there was a 15 second difference).
Is there any way to sync all 3 players together or to run all 3 videos in the same player? I'd like them to be frame accurate.
Are there any otehr ways of syncing the videos together (H.264?)?
Thanks for any help on this....,
Precision 670 Windows XP 4Gb Ram, 500Gb HD
Dell Precision 670 Windows XP 4Gb Ram, 500Gb HD

There are 3 different cameras but of 3 different views. However, people will be walking from one view to the next so they all need to be in sync to get the times right between cameras.
There is no audio on any of the footage.
At the moment, opening up 3 Quicktimes, each running 1 video, the quicktime that has focus tends to "run away" and fall out of sync with the other 2 (after I've selected "play all movies). I assume this is a XP focus/priority issue but is there any way around it?
Are there programmes available that will start all 3 at the same time and buffer them to keep them in sync? Can I wrap all videos in a H.264 wrapper and run them that way?

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               trace("ERROR: the control bar plugin failed to load.");
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