I'm seeing a lot of alternating dark/light vertical lines while strafing or doing any horizontal movement in any game. This look like some Pixel-Walking / Pixel-Inversion issue. It's really annoying and even uncomfortable after a while. I don't know what do to, except returning the screen but no one at Dell Support is replying to my emails or chat requests.

I already tried to:

• Use the screen at normal/fast/super fast
• With a low brightness/contrast of 64%/65% 
• With and W/O G-Sync
• At 60/100/120/144/200 or 244 Hz
• On different computer

I still have the issue.

My Screen:

• Model: AW2518H
• s/n: CN-07CJHF-XXXXX-XXX-XXXX (Redacted)
• Revision: A05
• Connection: Display Port

My Setup:

• OS: Windows 10 Pro
• Version: 1803
• Processor: i5-8600K
• Ram: 16 GB
• Graphic Card: EVGA GeForce GTX 1070 Ti SC GAMING, 08G-P4-5671-KR
• Graphic Drivers:  399.07
• Display Port: Yes