new to backtrack.. internet doesnt work? do i need something to install?

[dinbrca]

when i installed ubuntu linux distro, there was no need to install anything inorder my network to work..
am i supposed to install anything? because my internet (i browse with firefox, and i also tried konqueror) and nothing works..
thanks in advanced

[Saifallofjmr]

Try start->services->networking->start