Yesterday, i have installed windows vista on my computer as a second operating system(dual boot). there is windows xp in c: drive. after installing vista, it ran smoothly and no problems raised. but i got messed up with windows xp. it seems to be alright but, sound was not coming in windows xp(but sound comes in vista). i have uninstalled vista and installed windows xp again. till the sound was not coming in windows xp(there is no conflict with drivers). please give me a solution to this problem