Hi Brian,
I calibrate my DELL U2419H screen, usually monthly. I have just started running two screens & haven't calibrated anything for a while. I have plugged it in this morning & followed Damien's instructions for i1 DISPLAY PRO & looked like it will not turn on. I have tried multiple USB ports, but no luck.
My question is, if I needed to replace it, is this brand still a good one to go for? Or is there better out there now?
I have attached a screenshot of the error message to show you. And have tried restarting my computer with it plugged in, but no luck.