Dell Inspiron 1520 64-bit drivers===Windows vs Ubuntu 12.10

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http://askubuntu.com – I have had Ubuntu 12.10. 64-bit (this is my first dive into the OS) for less than two hours... and already am able to update the system on my old Dell Inspiron 1520, but alas, finding the drivers for this laptop is a chore. Everything seems to work for the most part, except Ubuntu claiming I have no graphics driver and the wireless will not work. I am thinking I just don't understand the wi-fi setup, then again, I've tried everything that I know for my SSID and other settings. Can someone point me in the right direction for getting wireless working (perhaps it is just user error for setting (HowTos)