Instructions
Step1
If you have a Windows computer, see if your current video card can support dual monitors. (Read Microsoft Knowledge Base article 182708 at support.microsoft.com.)
Step2
If it can’t, buy a monitor switch box and connect both monitors to it. Or buy a new video card that has dual monitor ports.
Step3
If it can, buy and install a second video card. Read “How to Install a Video Card,” for installation instructions.
Step4
Reboot the computer.
Step5
Set preferences for your new monitor in the Display control panel under System Preferences (Macintosh) or in the Display control panel (Windows).
yakimeshi 1:39 pm on December 14, 2009
Instructions
Step1
If you have a Windows computer, see if your current video card can support dual monitors. (Read Microsoft Knowledge Base article 182708 at support.microsoft.com.)
Step2
If it can’t, buy a monitor switch box and connect both monitors to it. Or buy a new video card that has dual monitor ports.
Step3
If it can, buy and install a second video card. Read “How to Install a Video Card,” for installation instructions.
Step4
Reboot the computer.
Step5
Set preferences for your new monitor in the Display control panel under System Preferences (Macintosh) or in the Display control panel (Windows).
http://www.ehow.com/video_13829_connect-two-monitors.html