Monitor will cycle through the menu screen every few seconds after being turned on.

LG Service Menu Instructions

Method 1

Press and Hold <OK> button on remote as well as TV panel at the same time for a few seconds.

Method 2

Press and hold the {MENU} button on the remote and the {MENU} button on the TV at the same time for at least 5-7 seconds.

Method 3

Press and hold the {MENU} button ON THE REMOTE until a 4-digit password screen is displayed.
LG Service Menu PIN/Password Codes

• 8 7 4 1
• 8 7 4 3
• 7 7 7 7
• 0 0 0 0
• 8 8 7 8
• 0 4 1 3

LG LCD Monitor Service Menu Instructions

1. First turn off the lcd monitor, then press and hold the "MENU" button, then turn on the monitor. Release MENU button after the monitor is turn on.
2. Press "MENU" button to open the OSD menu, at the bottom of menu, you can see a new selection to go into the factory service mode. Inside the factory service mode, you can see useful information like, product model, manufacturer date, F-ENGINE chipset version, lcd panel number and etc.

Your wiring may be causing "cross-talk". Separate the wires in back, so they do not touch. This should be an instant fix.

Follow these instructions :

1. Turn on your Samsung monitor (if it isn't already.)
   

2. Press the "AUTO" button on your Samsung monitor. This will run the automatic configuration utility. This will look at your current computer settings and adjust your monitor to best match those. This will take a few seconds. If this has calibrated the monitor to meet your needs, you are finished with the process. If it hasn't, continue to Step 3.
3. Press the "Menu" button on your Samsung computer monitor.
4. Use the arrows and the "Enter" button on the monitor to highlight and select various settings categories.
5. Use the "Brightness" menu on your Samsung monitor to adjust how bright or dark you want the image.
6. Use the "Colors" menu to adjust how prominent certain colors are displayed on your Samsung monitor.
7. Use the "Contrast" menu to adjust the level of black on your Samsung monitor.
8. Select "Save and Exit" to save your changes and exit the Samsung monitor's on Screen menu.

Plastic explosives! U have a mess on your hands. I would save any and all files from the hard drive, do diagnostics on drive to make sure it is good, and if so, then just reload the OS and take it from there.

Ive seen this on other monitors. Look for a 1 and 2. Some monitors do NOT auto detect a signal, and this one might not. Look for a way to set the monitor from Digital input to VGA input. Try that and see.

Your AUTO settings button is stuck in! Try tapping on it a few times. Otherwise you may have to take the frame apart so you can get at the button.

Your first step in troubleshooting this problem is to plug in another monitor to your computer. If you are having the same problem it is related to your computer. If the second monitor works fine then your original monitor is shot.

You are right in assuming it to be the monitor.
It is the inverter circuit that powers the backlights inside the LCD.
No backllight, no view. If you shine a bright light into the screen you will see it is still working, just not visible.

The Viewsonic range of monitors have a habit after several years use developing bad capacitors that need to be replaced. It's something that happens to most LCD's and alot of other electronics.. so not a design flaw, just age.

If you have modest electrical knowledge then its an easy job, If not then take it to your local TV repairman and have them do it. It should not cost alot to have it done. The main expense in this case is the labour.
Call a few shops in the area and get rough quotes to have it done. You will be surprised how much the cost can vary for the same simple job.

We had the same problem with the 17" we bought in Aug. Sent it back for repair. Acer sent it back without fixing the problem. Started doing it again in Nov. This time I called a supervisor and they sent me a new monitor. Well yesterday it started doing the same thing. You can fix it temp buy unplugging it and holding down the on-off switch for 30 seconds. Please let me know if you have a better fix.

Pressed the ff on the tv remote...Menu 0370...be careful in selecting an option...have to make sure that what you are going to highlight or select is initial..selecting E2 reset would render your tv unusable..don't attemp to make any other changes on the service menu...JUST SELECT INITIAL..no other option should be selected on the service menu screen.