Downloaded all the recent updates from where? Windows Update? After you
install an operating system, you must install drivers for all your
hardware. It sounds like you forgot to do this. Obtain and install the
drivers for your sound card.
Never get drivers from Windows Update. Get them from:
1. The device mftr.'s website; OR
2. The motherboard mftr.'s website if hardware is onboard; OR
3. The OEM's website for your specific machine if you have an OEM computer
(HP, Dell, Sony, etc.).
Read the installation instructions on the website where you get the drivers.
To find out what hardware is in your computer:
1. Read any documentation you got when you bought the computer.
2. If the computer is OEM, go to the OEM's website for your specific model
machine and look at the specs (you'll be there to get the drivers anyway)
3. Download, install and run a free system inventory program like Belarc
Advisor or System Information for Windows.
http://www.belarc.com/free_download.html - Belarc Advisor
http://www.gtopala.com/ - System Information for Windows
If you have installed drivers from Windows Update, you can roll them back:
How to Roll Back a Device Driver in Windows XP -
http://tinyurl.com/86yb6
Malke