can't get signal from computer to powerpoint projector

[SoCalNorm]

i have hooked up my projector according to instructions to my new inspiron
notebook. the projector is not getting signal from computer. projector has
worked ok previously with other computers. what should i do?

 

[Geetesh Bajaj]

You need to find out the hotkey combination that will activate the
projector.

This might help:

http://tinyurl.com/8wfxt