Own the same display. Is it working fine or did you need to install something extra as you had to do several years ago to get it running properly? Any idea how long these displays work before breaking down?
I have a Dell 1,600 x 1,200 which I probably bought around 2004 and it works fine. I don't use it anymore except in a pinch or to test a system but monitors can last decades. My current monitors are Dell Ultrasharps which are 4-6 years old. I also use a 2010 iMac 27 and a 2015 iMac 27 and their screens are fine.