MWF

I have a 21inch dell ultrasharp lcd, for about a year and a half now. It just today started acting strange. It will suddenly get extra bright and then shut off. The light remains green meaning that it is on. If I try to turn it back on, the image will come and then turn off again a second later. Usually after a few times the monitor will stay on. I tried unplugging and replugging it. The only other thing I can think of is I just got a new HP printer.

The only thing I can think of printer wise would be if there are some drivers causing an issue. I updated my laptop with some drivers and get strange display issues.

There is a possibility that your monitor may just be going out, as I have had that happen. The best way to troubleshoot would be to hook something else up to the monitor and see if you get the same problem, and if so, then your monitor is bad.

Otherwise, starting your computer up in safe mode would help your determine if there is a driver issue. Assuming you are using Win98 or higher, restart your computer, then press the F8 key until you get the boot-up menu. Select Safe Mode, and see if you still have the same problem from that.