802.11g Network Adapter Radio Control Swi...

I'm trying to connect to the internet on my laptop. It's a Gateway 7415GX and it's supposed to have a 802.11g network adapter in it. I've done everything I can to set up a wireless network but I get the message "Te radio on your 802.11 network adapter is still disabled. Use the hardware radio control switch to enable it"
We have a 2Wire wireless modem through SBC. Our other laptop works just fine with it. If I plug the Gateway in with the cord, it has internet access. This is driving me insane!
I've looked all over and I can't find any switch anywhere on the computer! The only switch on the bottom releases the battery!