<<No Audio Output Device is Installed>>

Hi, I have HP Pavilion dv5000 laptop, it recently crashed and I reinstalled the system and installed Vista. I have this error "no audio device is installed error" on my screen. I have tried all the possible solutions I read on this website, such as enabling and disabling the device, uninstalling and reinstalling "High Definition Audio Device" option. Still no use, everytime I reinstall or renable it, I get an exclamation mark on it. It gives the message ---"this device cannot start. (Code 10)
Click 'Check for solutions' to send data about this device to Microsoft and to see if there is a solution available."

Please help me out with this problem.