I just replaced the LCD on a Compaq Presario R3000 and have the following issue with it.
When it boots, I get no display on the LCD. I will get a display on an external monitor. When the computer finally gets to the boot up screen, I get a display on the LCD, but it is limited to 1024x768 not the full 1200x800 it should be.
Looking on display properities, it show multiple monitors, 2 default and 1 plug and play. I have been unable to get the system to recognize the new display as to what it is.