Multi-monitor desktops are popular with both professional computer users and enthusiast gamers who want a more immersive widescreen experience, but setting up these systems can be somewhat difficult.

If the Dell UltraSharp U4323QE has made it on to your shortlist of the best 4K monitors, it's going to be because you're after something that's pretty huge. This is a giant 43-inch monitor (well, 42.5 ...