i recently recieve this Hp pavilion dv9000 from my relative . . . and we noticed that it doesnt have a hard drive so we bought one . . and installed a Windows 7 ultimate . . when i opened it at home . . it has no audio and the quick lunch buttons above [ volume, play, next, previous, mute etc.] is not working and there is also no blinking lights at the indicators at the lower left part of the laptop below the keyboard, so it tried to download drivers here at hp.com and installed it . . and it was sucessful but still there is no audio .. i downloaded , audio driver, BIOS, Quick lunch buttons and resart it but still wont work -.-