so i just installed lubuntu 16.04 on a bootable usb and it can boot just fine on any other pc, but when i try to boot it up on my own pc it gives me a black screen and a little white line near the top left corner. I've tried to look up answers and people say they solve it buy installing it using the right method because they didn't do it right, but i have installed it exactly the same way as my friends and classmates and all theirs are fine but mine isnt, so it cant be the installation. If you could help thank you.