....

Couldn't post a link without 3 posts :)

I'm looking at this you tube video on the p400 and it seems to be flickering
different colors on the white. Is this the video or is this the projector?

http://www.youtube.com/watch?v=gneih9yVT1I

The color shifting in that video could have been:

1. The video source - I have seen a composite connection do this
2. The camera shooting the video - if it is set to auto-white balance, the balance could be shifting due to the lack of light and the changing image
3. Compression - crunching a video down to flash video uses massive compression and introduces artifacts including color fluctuations.