I just finished putting together my first custom-built PC, using an ASUS P8Z68-VPRO/GEN3 motherboard with a 2700K CPU. For now, I'm just relying on the built-in graphics until the Radeon 7000 series are a little more affordable. I wanted to be able to set up a dual monitor configuration, so I purchased a couple of identical ViewSonic 22" VX2253mh displays, which are plugged into the motherboard with HDMI and VGA cables. After installing Windows 7 and downloading all of the updated drivers
I could find for my chipset, the motherboard, and everything in Windows Update, I set about changing from a clone display to an extended desktop configuration. I got it working alright, but with one really annoying problem: on the monitor that is connected via HDMI, there is a scaling or resolution problem so that I can't see the edges of windows that are maximized. It seems to cut off around 20 pixels in every direction--so I can't see the menu bar in my browser right now, for example.
For what it's worth, when I use the Intel software to modify my display, it refers to one of my monitors as "Monitor VX2253 Series" and the other as "Digital Television VX2253 Series," and whenever I try to change the digital television to monitor, it automatically switches the other to digital television. I presume this is standard procedure for some reason, though it's confusing to me why they would automatically refer to my second monitor as a television...
OK, I actually just solved my problem. I'll go ahead and post this anyway, in case someone else stumbles upon it and finds it useful.
Solution: I just accessed the menu on my HDMI-connected monitor and played around with the settings. I noticed that for input, it listed HDMI -- AV. I changed it to HDMI -- PC, and voila! Dual displays are a beautiful thing.