Some USB devices require a higher electric current connect the device directly to the computer.Try changing to another USB port (if applicable).Make sure the USB cable is connected properly.USB devices connected to the monitor do not work Make sure there are no obstructions near or on the monitor, and that there is adequate spacing.Make sure the volume is not muted, nor set to 0.If using ear-/headphones, ensure the mini stereo jack is connected.Adjust the ViewMode or the input source.Turn off the monitor, unplug the power cord, plug it back in, and then turn on the monitor.The OSD Menu does not appear on the screen/the OSD controls are inaccessible Make sure the "Blue Light Filter" is Off.Adjust the horizontal and vertical controls via the OSD Menu.Adjust the resolution to the correct Aspect Ratio.Check for bent or broken pins in the video cable connector.Adjust brightness and contrast settings via the OSD Menu.If you have an older graphics card, contact ViewSonic® for a non-DDC adapter.
Connect the monitor to another computer.Loose or broken pins in the cable connector could cause an improper connection. If any colors (red, green, or blue) are missing, check the video cable to make sure it is properly and securely connected.Make sure the correct input source is selected.Adjust the brightness and contrast settings.Make sure the video cable connecting the monitor to the computer is properly and securely connected.Power is "On", but no image appears on screen Plug another electrical device into the power outlet to verify that the outlet is supplying power.Make sure the power cord is properly and securely connected to the monitor and power outlet.Make sure you have turned on the monitor by pressing the Power button.I would really appreciate any info you guys could lend, and appologize for such a long post.Troubleshooting Common Problems Problem or Issue I really like this monitor but if a problem like this happens due to the slightest power surge, I don't know if I can trust using it again. So maybe I should try a new DVI cable, and if that doesn't work, I'm probably looking into getting a new monitor. And now when I tried plugging my monitor back in, the color tint is even worse. I've already tried to plug it in to another computer, I am using DVI, I tried analog on the other computer (my video card doesn't have any analog plugins) same deal. I have an APC surge protector, that has always done me justice. The only other thing I can think of was that it was damaged possibly in the power surge. I tried reinstalling all the codecs and drivers, and it still doesn't seem to be fixed. Well, as I went on, I began to notice that maybe it wasn't just reset, but that something was seriously wrong with it, sometimes during games, it would get this major greenish tint. I loaded it back up and there seemed to be something off on the color or visuals, I thought it had reset something, so I did my best to fix the problem. I think it was about 3 months after that, there was a power surge of some sort and my computer went dead while I was on.