|If you're getting that message, then you're not installing the correct drivers. Does Device Manager show any wireless card detected?|
Did you enter your ST on Dell's support site and look at the Wireless drivers there? If you received a Dell Resource CD with your computer, the drivers will be on there as well.
"So won’t you give this man his wings
What a shame
To have to beg you to see
We’re not all the same
What a shame" - Shinedown