We don't want a war in the Middle East, if we can avoid it - Dick Cheney
Paragraph 3C of the EULA states that while the software is running, you can use but not share its icons, images, sounds and media.
If Microsoft means to word the EULA this way, that implies you can't use projectors or linked video monitors if there's more than one human being present.
It also implies that you can't take a screen shot of the Vista desktop.
We suspect a cack handed phrasing of the EULA is behind this, rather than any conspiracy or cunning plan to tax projectors or extra monitors.
The Microsoft PDF of the EULA is here. ยต