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This is for my work computer, so I am stuck with XP.

I'm using a laptop and a secondary monitor.

I can extend the desktop to my secondary monitor without a problem.

When I check off "Use this device as the primary monitor" checkbox and hit "Apply", the secondary monitor is disabled entirely (no longer extended) and only my laptop works. I have no idea why this is occurring, any ideas?

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up vote 3 down vote accepted

I ended up using the graphics card settings tool as opposed to the windows XP settings and that seemed to work.

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Look for an updated display driver... Display drivers are sometimes just old and incapable.

You may be able to go into display properties where you see the two displays named 1 and 2 and grab one and drag it to the other side of two. If you need to switch them.

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