Sound problem. hi , i installed windows xp sp2 on my computer after format , and i installedall

Question

hi , i installed windows xp sp2 on my computer after format , and i installedall computer drivers include the sound driver.my motherboard is msi 865pe and i downloded my sound driver from the msi net.i also checked my speakers connections and everything looks ok.when i open winamp and play song the time is moving butstill there is no sound....what can i do???