To find out what wireless you are dealing with open a Terminal and input: lspci
...or if you are using usb wireless input: lsusb
Copy and paste your results here.
Have a look at "HowTo: Ubuntu Linux on HP Pavilion series laptops on http://aldeby.org/blog/index.php/how...series-laptops
. Scroll down and you will see that it covers three wireless cards: A) Intel Wireless (3945ABG, 4965ABGN) B) Broadcom wireless C) Atheros wireless