Hi Todd,
We, the regular Posters who have tried this find that in any app that produces a file that you can scroll in a display window is subject to this.
Word, TextEdit, Keynote/PowerPoint and so on.
I am not sure why some have problems with the 16:9 format of the iChat 4 picture window and others do not.
PowerPoint/Keynote are likely due to the fact that here the default Paper size for Printing it out would be 11.75 X 8.25 (A4) in Landscape which falls between 4:3 and 16:9 which might be a clue.
Same for Word and other Portrait layout Text based documents.
Pics form cameras or Video is likely to be one or the other format.
9:16 PM Saturday; March 8, 2008