My Princeton vl173 17" flat panel flashes yellow

Hi Joann.

I'm not cetain, but it sounds as if you are referring to the power-on indicator light near the on button. It should be indicating the staus of the monitor -- whether it is turned on or off, whether it is receiving a signal from the PC, etc. When it is off, and not on stand-by, that light should go out. If not, you can pull the power supply plug from the display and it will go out.

If you are referring to the display itself, and not to the power supply, then it is a matter of tracking down the issue. Did you make any recent changes to the system? Is this an issue that began suddenly, recently, or gradually? It is possible that there is some reason why the drivers and video card software have been changed, or are beng interefered with. You can attempt to check to see if the correct system video (monitor) drivers for your system are in place. Also, if you are using a PCI video card, like an nVidia card (mine is an nVidia 8800 GT), make sure your nVidia software is the most recent latest version.

It is likely that your video card manufacturer has the latest drivers/software available for free on their website. Locate, download, and install, then configure.

It doesn't really sound like a power supply issue, but you can check that too. Find (or borrow) a differnt power supply. You need one with the same input plug as your display. Also, check the power output profile (specs) on your monitor's AC adapter (power supply). It may say something like "Output: 12 volts, 4 amps". Find another "known good" power supply that has the same, or almost idenitical power output rating (like 12 vots, 3.5 amps). It should be very close. The voltage must be the same. If you try it and it solves the trouble, it was the power supply! If so, then just tell the person you borrowed your temporary power supply from that the dog ate it (just kidding).

To see if there is a driver error indicated in your hardware manager:

Right click on My Computer. Select "Properties", then "Hardware", then "Device Manager." If you do not have the correct video/monitor drivers in place, there may be an indicator in that list (like a yellow mark with an exclamation point inside) indicating you need a new/correct driver installed for that component.

I hope that helps.

Steve