Like pretty much every other 24in monitor, the 245B spots a native resolution of 1,920 x 1,200, which is becoming a very desirable option for a number of reasons. The most obvious plus point of a 1,920 x 1,200 resolution is that it gives you a lot of desktop real estate and allows you to have several windows open at once. But another significant advantage to this resolution over the 1,680 x 1,050 resolution seen on 20, 21 and 22in widescreen monitors is the ability to display 1080p high definition content.
When it comes to 1080p video, a 1,680 x 1,050 resolution screen simply doesn't have enough physical lines at its disposal, not to mention that the full HD standard resolution is 1,920 x 1,080. With that in mind, a 1,920 x 1,200 screen obviously has enough lines for a 1080p high definition signal, but having too many lines can also be an issue. Basically, for the best quality 1080p image on a 1,920 x 1,200 screen, you need 1:1 pixel mapping, which unfortunately the 245B doesn't have. This means that if you plug in a device that's outputting a 1080p signal it will be scaled to fit the full resolution of the screen, thus affecting the sharpness of the image and the overall aspect ratio.