Wondering if anyone knows how to change the primary monitor on my iMac running vista via bootcamp. In the display menu there's a tab called "This is my external monitor" but it is not clickable. Please help! i want to play L4D2 on my new 24inch! 
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iMac Vista primary monitor help!
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So you have two monitors? Which model is the external and what adapter are you using to connect that external to the iMac?
Have you checked the "This is my main monitor" box? Or is it not there, as you alluded?
Have you checked the "This is my main monitor" box? Or is it not there, as you alluded?
I have a Asus 24inch which is connect via DVI to Mini DVI. I want to use the Asus as my main display so i can play games on it but its not allowing me to click "This is my main monitor".