Hi everyone... I am using dell insperion laptop. I had a problem and with it... I wasn't getting any display at all. I got my motherboard and ram replaced...
But since then, I could not get any kind of sounds in my os... it plays songs and movies pretty well but when it comes to.. say live cam aviator and other windows default sounds, it doesn't work... its showing error message "full-duplex sound card requried".what might possibily be casusing tis problem?? Can you help??

Re-install sound card drivers. They should be available on the software that came with your laptop or on the Dell website.

It sounds like bad sound card drivers.

Uninstall your sound card drivers from control panel.

Start ---> Control Panel ----> system ---> device manager ----> select sound card/audio devices. Right click on it and select uninstall.

Another step further is uninstall the program it may have been using. Find that in Add/remove programs, also in Control Panel.

Then proceed to download the latest driver from the manufactuers website, to ensure you have up to date drivers.