Justin

You have to know the hardware that you have, in your computer (specs), the right way to configure your card is, as "root" in a shell

modconf

there are a list of modules and drivers, push ppge-down until "kernel/drivers/net" and press ENTER

a new list (detailed) appears and you have to establish yor choice and pres ENTER again

there are some drivers for realtek hardware, but you have to know the spec of your machine (navigate with pg-up and pg-down)

I hope its helps

Frank