after you turn on the monitor about 30 seconds later it gos blank like you shut it off. does anyone know what the problem is ?
It sounds like your monitor's back-light is bad. This is a common problem with LCD monitors. LCDs use a lamp (usually fluorescent or possibly neon) that provides the illumination for the screen. Often times this lamp will go bad before anything else on the monitor. One of the symptoms is when the monitor is turned on the lamp will work initially, but after a few seconds, and the lamp warms up, it shuts down. Most times if you look closely, with some external light onto the screen, after it shuts off you can see a very faint, dark image on the screen of what was on the screen before the lamp went out. This is the image without the benefit of the internal light to illuminate it. If you don't see any faint image, but the screen seems to be somewhat illuminated, then your inverter (another monitor internal component) may have gone bad. At this point you have two options. 1) Take it in to get repaired by replacing the lamp or inverter, or 2) Purchase a replacement monitor. Best of luck.
More info please Does the Power LCD turn off ? Can you get the screen back by moving the mouse, or touching the keyboard ? At what point (exactly) does it go off (for example after inputting user name and password ?)
