Possible Duplicate:
My computer boots to a black screen, what options do I have to fix it?
I've tried to install Ubuntu 11.04 and 12.04, but I have the same problem on both.
I proceed like this: I restart my computer, the language menu shows and I select my language, and then select to set up Ubuntu. Then I get a black page, and nothing else.
I have an ATI graphics card. My laptop is an HP G62 series.
What should I do to make the install work?