hello, i am trying to run the linux distribution Kubuntu on my inspiron 1520 laptop. When i run Kubuntu from a live cd, after a short period of time, it recognizes a proprietary wireless driver that needs to be installed before i can connect to the internet (duh). Problem. when i install kubuntu via a hard disk partition, it will not recognize the driver, even if i use the start menu to search for proprietary drivers. this has me stumped. PLEASE HELP!!!!!!!!!!!!!!!! 
ps. the driver is a Broadcom b43 wireless driver.
