I have the Dell UltraSharp 38 ultrawidescreen 4k monitor when I bought my Alienware PC. Great picture, but there's been a problem with it since I got it where the display wigs out into a million vertical lines. I worked with Dell to fix it and they replaced the CPU, the graphics card, the ram, etc. Still doing it. So I'm guessing it's a problem with the display. But now it's out of warranty. Never get a Dell.
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