Monitor stays white, cannot get picture

go into control panel, display setting and apply same settings on both

It looks like a circuit has failed in your monitor, more than likely the inverter, its a case of repairing or replacing said circuit.

chapp29, You didn't tell me the brand name of the electrolytic filter capacitors that are on your monitors "switch-mode-power-supply / cold-cathode-fluorescent-lamp-ballast" circuit board. How did you measure (check) the capacitors? Are any of the rubber seals pushed out of the bottom of any capacitors? What is the "date of manufacture" of this unit? Will L1916HW work connected to a different "known-good" pc? Will "known-good" monitor work ok when connected to your pc? 12fixlouie

http://www.microsoft.com/windowsxp/using/setup/personalize/screensaver.mspx
Go to website above and follow the procedure.

Hi! using analog it seems to work for now but sometimes it blinkes white on the screen,it seems to work better when I have had the screen on, for some hours then it seems to work fine.. But I dont know for how long..
samsung 19 wide.
/ Johan

You got a short circuit in one transistor located at the inverter area. The transistor is acting like a conductor and not shutting down the power to the back light inverter. If you are a technician and want to fix it, look for short circuits in transistors.

Good luck.

It could be a computer problem
The only way would be to test the computer on another monitor and the current monitors on another computer.
Then you will see which has failed.

If you haven't figured it out yet through a web search, Westinghouse monitoris have problems with blown caps on the power supply board. If you are lucky the problem is minimal and won't require more than replacement of the caps. You won't know until/unless you open the case and inspect the power supply board.

Well the first and second paragraphs make me say the Inverter/power board must be replaced.

A white display typically means either your display cable (in your monitor) is loose or logic board is dead.

Either one of these things typically mean take it in for an estimate to repair, and if it's too much, buy a new one.
With your luck I think I might switch to big cheap CRT.

I have the same problem with my LCD tv... The DVI-D (white connector in the back) and the D-SUB (connector on main-board next to the DVI-D) work great for my computer. However, the antenna returns only a white screen no matter what I plug into with it using a coaxial cable. Judging by the modular configuration on the TV (1 main board with LCD monitor attached to it and the 2 computer inputs, and a smalled board on the back with the antenna, component video, S-video, mini-jack out, and composite video.) I think the smaller board which I believe is called a "NR Unit" is what has failed. I took off the back mini-panel of the TV off, which just slides off when you press down 2 tabs. And, I found the small board which is only held down by 5 small screws, and it pops right off. So, if you can find a NR board from westinghouse that works, it's a quick and easy (hopefully inexspensive) replacement. Hope this helped.