I have NEC Accusync LCD 92VX monitor it flashes only then it turns out black

Sorry the unit is dead and you will need to replace it. I would avoid NEC on the next purchase.

Windows 7 & Vista:
Right Click on your desktop and go to Personalization. Click on Desktop Background at the Bottom of the screen. On the Picture Position drop down menu, click Stretch and save changes.

Windows XP:
Right Click on the Desktop and click Properties. Go to the Desktop Tab. Select stretch from the drop down menu. Apply.

Please Rate my answer. Thank you.

Probably a hardware issue. Cheaper to buy new one than fix it.

Download it here:
http://www.eserviceinfo.com/downloadsm/27364/NEC_AS120-1,%20AS120-BK-1.html

Hi:
Your monitor has a problem on its inverter board. It is an electronic component failure, and often it cost's more to fix it than to buy a new LCD monitor .

Hello: Try the following:

Signal cable should be completely attached to the computer.
Use the OSM Image Adjust controls to focus and adjust display by increasing or
decreasing the FINE control. When the display mode is changed, the OSM Image
Adjust settings may need to be readjusted.
Check the monitor and your display card with respect to compatibility
and recommended signal timings.
If your text is garbled, change the video mode to non-interlace and use 60Hz refresh rate.

Try this link, I am asumming you have the AccuSync LCD71VM monitor, I don't know what a n4 ibfgl is. But here is a link to nec that might help you...
http://www.necdisplay.com/SupportCenter/DriverFinder/

Download the file NEC LCD MONITOR Installer.
Hope this helped you..THK

Call 800 836 0655 and ask for directions from tech support.

no sound

i got the same prob.supposedly its the cap(capacitor) ,the one for the power suppy near the cord input.im getting my shit fixxed.and i will let you know.