無聲之迷,Sound Driver

去控制台 -> 聲音及音訊裝置 -> 音訊 -> 音效播放 / 錄音, 睇下預設裝置有冇你張 sound card 個名.

冇的話代表部電腦 detect 唔到有 sound card, 所以冇聲.

download sound card driver:
onboard sound card 就去番motherboard個網頁度download, 又或者你有motherboard隻 driver cd, 可以用隻cd來裝.

如果你張sound card係另外買ge, 通常會係 creative, 可以去呢度download.
http://us.creative.com/support/downloads/