MY laptop is a Dell Inspiron 5520 with a sticker of Ubuntu on it. i have downloaded Ubuntu desktop 12.10 64-bit and made my Ubuntu bootable USB flash drive. I restarted my computer. It gave a black screen with one line begins with:
syslinux 4.06 --- 1992 - 2012
And then there was no response. How can I fix this and get the Ubuntu flash drive to boot?