I'm trying to install ubuntu (64bit amd) alongside windows 7, From Bootable sandisc usb flash , but when i am trying to choose 'try ubuntu' or 'install ubuntu' its stoped on black screen with hide and show horizontal cursor and do nothing. I tried 13.10 , 14.04 but the same problem. Please reply to me soon with the soluition. Thanks in advance.
Ps: My laptop ram was 3GB but i increased it to 4GB.
My laptop: Asus: model x61s , 4GB Ram , windows 7 64bit , processor intel(R).