masalah ni biasa bagi sesiapa yg nak downgrade vista ke xp pro/home...nak cari driver mmg sekse.minta bantuan sesape yg tau camner n apa jenis sound manager cth (realtek hd audio manager) yg support...currently laptop c700 ni guna conexant punye driver..tp takleh install audio manager nye..so kalo nak dengar guna ear/headphone dalam masa yg sama speaker pon bebunyik gak..nak wat bunyi macam dalam auditorium, nak control bass semua takleh..