Trouble when installing my audio driver......

Hello,
i have the note book of compaq presario F700
last month i had formatted my c drive after formattting
i have been start installing my sound driver while intalling the massage
had come that your system unable to find audio device
one more thing is that the whenever i start my notebook a beep sound has come
plz tell me a correct procedure to solve this problem
i have all the sound driver but all the time i it is fail to install.

Configuration: Windows XP
mozilla firefox