I have an HP Laptop running Vista. When I boot it normally it just goes to a completely black screen. I have tried an external monitor and that is black too.
I can boot into safe mode and I can see the screen so I can replace drivers etc, but nothing seems to work.
If the Video chip on the motherboard is messed up, how come I can work in safe mode and also get to the bios diagnostics which say nothing's wrong? Surely it should all be black if the chip's malfunctioned, probably through overheating which is a problem I have experienced before so I try to keep the laptop cool.
I'm baffled and would appreciate advice