I just saw this and I went through heck and back with my HP Laptop. Apparently there are nothing but headaches with the Broadcom chipset on these laptops. Some people can get them to work (guru's) and then the rest of us.
Installing on a laptop I had to use the noapic to get it to boot and then after installing I had to edit the grub and add the parameter. Also, I spent a week trying to get the bloody broadcom chipset wireless to work. I finally gave up and got a 20.00 usb wireless (mimo chipset) and boom she a worked.
Note it is important to blacklist the broadcom driver from loading, otherwise you will have propblems with connecting and disconnects.
Let me know if this helps.
I will be writing a doc on the HP dv6500 laptop Ultimate Edition install later when I get time.
Cheers.