Here's a little more detail to it, I am the friend with the problem. The Dell 3200 projector has basically one input for both my PC(through VGA) and for a HD signal through component. That connection is a specific type of a DVI card, called a P&D or EVC or M1-DA connection(for what that connection looks like go to the following link and scroll to the bottom
http://www.pacificcable.com/DVI.htm ).
The projector comes with 2 set's of cables for this p&d connection. p&d to component connection; and p&d to VGA.
I do have a BNC switch box that I have the projector plugged into, along with my HD TV box and DVD player for the inputs. I recently got a BNC to VGA cable and could not get a signal on the projector, but I wonder if I have to change any settings on my PC or projector first so that is first question that I have.
The other question that I have is only if that BNC to VGA connection is not going to work. And that is basically if there is a way to have a dual input for that P&D connection so that I can have my component and VGA signal at the same time without unplugging one and plugging the other in.
One last thing, when I go directly from the projector to my PC I cannot get a working signal on my projector. When I reboot my PC the image will display on the projector, but then when it goes into the login screen the signal is lost.. Any suggestions here??
Any help would be greatly appreciated, thanks in advance!