Will Not Recognize My 2nd Monitor

Dec 16, 2009

I am running Windows 7 Ultimate on a Macbook Pro, and I would like to use the laptop screen as well as my ASUS 23" lcd monitor. When I open the display > screen resolution window, it shows that I have only one display, and gives me no options for multiple displays. The same image is displayed on both screens. My 2nd monitor is hooked up through DVI, and worked just fine with Windows XP. Does anyone know what my problem might be?

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I wish I could tell you my graphics card but I just don't remember.

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I receive a black screen as if to say this something being outputted, but nothing is displayed. Both windows screen resolution and the intel GUI both do not recognize another device. [code]

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Here are my system specs:

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[code]....

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