You see, Stephen, no desktop computer 20-inch monitor can display 1920x1080 at all (or they look fuzzy at that setting): Every single separate 20-inch monitor I've ever seen has a native resolution of only 1440x900, 1600x900 or 1680x1050. And unlike HDMI, DVI can automatically adjust the card's output resolution to match the monitor's native resolution. It so happens that computer LCD monitors perform a mediocre job or worse at scaling input that does not match their native resolution.
In the case of the Acer 20-inch monitor in question, its native resolution is only 1600x900, not 1920x1080.
These are 1920x1080 monitors. They also have HD tuners and component inputs.
Just because the monitors accept a 1080P signal doesn't mean their native resolution is 1920x1080. At 20 inch they very likely can scale that signal down to the native resolution of the panel which may be 1600 x 900 or another resolution that is 16 x 9 resolution. That scaling can be done by the GPU or firmware on the Monitor depending on the video driver options and the firmware options. That scaling is also the most common cause to text and icon blurriness you are talking about. As an example there are Pro monitors that accept a 4K signal but scale it down to 2.5K or 2K on the actual panel. You might try going into your video card settings such as Nvidia control panel and look for the scaling options. Select GPU scaling and see if the preview is better. If that doesn't work select no scaling and see if it's better if the monitor firmware handles the scaling.
These are 1920x1080 monitors.
It will take a day or so to verify the models.
Samsung HD Monitors. 1920x1080
Message was updated by: Stephen_Spider