The "Dell Premium Panel Guarantee" only applies to Bright pixel defects. Bright pixel defects only appear on a full black windows desktop. The policy does not apply to Dark pixel defects.

We do not validate our monitors in a dark room. We validate our monitors in rooms with a minimum of 150 lux which is standard office lighting.

* Change the windows desktop to an all black background
* Take and post a picture of this showing any pixel defects
* Change the windows desktop to an all white background
* Take and post a picture of this showing any pixel defects


Sometimes you can "exercise" a pixel to un-stick it

* Download/save smartUDPixel.exe to your windows desktop
* Turn off all Windows power management and screen savers
* Run the software
* Click and drag the blinking box to cover the pixel
* Let it run for 15 minutes

* Download/save montest.exe to your windows desktop
* Turn off all Windows power management and screen savers
* Run the software
* Press F9
* Let it run for 15 minutes
* Press Esc
* Press Enter/Return to exit