I have a Windows 7 laptop and looked around a bit and pressed the connection to the projector then I accidentally selected something from them (the first one) and after that my screen was only black after a restart it was only BLACK!
What happens if you reconnect the projector?
I have solved the problem again but now I have another one maybe you could help me.
so:
my windows 7 pc has made an update and when i start the pc it is black and there's not even a mouse pointer i have a laptop:
,
Lenovo n500
The actual display of the laptop is broken, so I use a normal monitor with an HDMI to DVI cable.
Hmm that's stupid. You may have to change something so that the monitor is recognized. Of course, this is not possible if the actual display is broken.