Sounds like a backlight issue. Hold a flashlight up to the screen really close and move it around, shining it at different angles as you go. If you have a video source hooked up (ie. your PC) then you should be able to see the picture very dimly.
Several possible causes exist for such symptoms. These include capacitor failure, bad solder joints, dead CCFL, etc.
I can help you repair this problem by providing you with disassembly instructions and troubleshooting to isolate the issue. From there I will tell you how to DIY, or you can mail the faulty board to me for repair. I actually have spare parts for this monitor on hand and will ship it as soon as your old one arrives at my location. Fast turnaround!
I charge a flat rate fee of $40 for my repair service. That includes return postage. You pay for shipping to me.
I will also accept your entire monitor as a trade in towards the purchase of anothor. I have many working LCD's on hand. Prices for Grade A name brand units (Dell. HP, etc) are as follows:
15" - $50
17" - $70
19" - $90
Trade in credit for your old one:
15" - $10
17" - $20
19" - $30
If you pay the shipping on your trade in LCD, I will pay for the shipping of your new one back to you. Otherwise buyer pays shipping cost for any purchased units,
Please visit my web site, and feel free to call or email me with questions.