I have an OptiPlex GX620 Slimline and running Win 7... I am trying to install a 2nd monitor. Both are working, but the screens are cloned, and I have searched for the setting for the extended monitor option... No luck. I'm seeing that maybe my graphics card can't handle 2 monitors as extended screen. How do I find out what graphics card I have, and what graphics card I need to make my dual monitors work as separate screens? I am more familiar with XP when it comes to finding that type of information.
If it has a graphics card it is either x600 or x1300 which supports 2 monitors but there is no windows 7 driver. So you could either go back to xp or get a new graphics card. Any graphics card will support 2. http://www.newegg.com/Product/Product.aspx?Item=N82E168... This is currently on sale $30 before the $15 rebate but is for today only.