I've tried for more than 5 years (about 6-7 times) to install various Ubuntu editions. Not once have I been able to connect to my wifi. I've tried everything: USB booting, cd-rom booting, buying different cd-roms (4 times), looking for answers on the internet (from outside Ubuntu, obviously), entering numerous commands in the terminal as suggested, connecting via hardwire to perhaps seek a solution, editing my connection a hundred times: Results -WiFi connection, NONE. I give up; screw Ubuntu and Linux. Don't expect widespread acceptance when the most basic functionality is so difficult to obtain.