A WUXGA screen isn’t working as replacement for a WXGA screen.
Does it need a different inverter or video card?

What is your problem. No backlight or no video at all?
It’s possible your new WUXGA screen needs a new video cable.

A WUXGA screen isn’t working as replacement for a WXGA screen.
Does it need a different inverter or video card?

When I started up my laptop this morning the screen was very dark, but the desktop was dimly visible. I restarted it a few times and on the third restart it worked fine–after I had turned it over to see if there might be a problem with the opening-and-closing mechanism of the top. I think I jostled something enough to make it work again–it seems like a physical problem. Is it likely to fail again? Is this probably an inverter problem?

Possible inverter or backlight lamp failure. I cannot tell without testing the laptop.
If the laptop starts failing like that more often, try replacing the inverter first.

I have a Dell Lattitude D800,when i press power on,the screen image comes on as normal but the backlight flickers real quick (like strobes) for about 2 seconds then just goes out,when it flickers i can hear a real quick ticking noise,like the starter noise from a flouresant light ,but the laptop and screen image stays normal..any ideas ? i did keep the main ribbon plugged in to the dell screen then got a different screen and plugged the backlight in from the other screen,but the backlight on the other screen does the same,so i dont think its the backlight,so all i can assume is that the inverter has give up the ghost..

You did really good troubleshooting the laptop.
If you have same flickering problem with another backlight lamp, most likely this is inverter failure.
I think replacing the inverter board should fix it.

i have a dell latitude series d800, when i start the laptop a message comes on saying –
“the ac power adapter type cannot be determined. this will prevent optimal system performance.
strike f1 to continue, f2 to run the setup utility”

if i press f1 it goes to another page with a few options on it, “start windows normally” which i have tried, “last known good configuration”, also tried, and “safe mode with networking” also tried, each one of these options restarts the laptop and it goes back to where i first began. my knowledge is limited and i have no idea what to try. any suggestions would be appreciated.

I think you have two different problems.
1. A message about wrong adapter might appear when you are using a generic AC adapter. Are you using the original Dell AC adapter?
2. It’s possible the laptop will not boot in any mode because the operating system corrupted. Also, this could be hardware related problem but first I would try reinstalling OS. I cannot tell what is wrong without seeing the laptop.

if i press f1 it goes to another page with a few options on it, “start windows normally” which i have tried, “last known good configuration”, also tried, and “safe mode with networking” also tried, each one of these options restarts the laptop and it goes back to where i first began. my knowledge is limited and i have no idea what to try. any suggestions would be appreciated. thanks.

I have a Inspiron 8600. The screen has a black spiderlike perminate markings on it. I bought this computer off a friend but I am not sure what happened to the screen.. looks like an impact of some sort… Should I just buy a new screen?? and replace according to your instrustions??

The LCD screen definitely broken and has to be replaced.
You can follow this guide for Inspiron 8600 laptop: http://www.insidemylaptop.com/files/dell-inspiron-8600-inverter-replacement.pdf
By the way, I would suggest searching for a new replacement screen using Dell part number from the back of the original screen. This way you’ll find a compatible screen and there shouldn’t be any mistake.