Network Projectors

I'd like to make sure that my understanding perception is correct.  It is my understanding that Vista can output directly to a network projector (instead of a monitor) for presentations, etc... Sure enough, there is plenty of information in Vista to support that (Wizards for 'connecting to a network projector', etc) - I guess my problem is that I don't know for certain that my Dell 5100MP really is a 'network projector' fully capable of supporting video input to it, over the network... I can get to the built-in web browser for management, but I can't seem to do anything else.  Is this Projector capable of receiving video input over the network? 

 

For additional info regarding what I've done so far, I have a separate posting;

 

http://www.dellcommunity.com/supportforums/board/message?board.id=proj_2200MP&thread.id=2841