I have downloaded 12.04 and made a bootable USB flash drive. Then I installed this version on my laptop (Dell Vostro 1510).
Unfortunately my laptop does not run with Ubuntu. Actually just after the appearance of the Ubuntu logo the display disappears. When I try to run commands through the command line it does not work neither and the error is the following:
fatal error, no screen found. I should mention that the laptop works properly with the bootable USB flash.
Please let me know if there is a solution for this problem.