I have a laptop that shows up on external monitors. The OS is windows pro and the laptop is a W541. I have swapped the drive to another good and same model laptop and it does the same. I have checked the function F7 to make sure the projector mode was not on. I have hit the brightness. I can see some of the desktop in the background but it is really grey and not really seeable to see what it is. I have updated the drivers and still nothing happening. His external screens show up just fine but the display on the laptop does not?