Go to device manager, right click the audio device, click remove, confirm and restart the PC
This will rebuild the registry and also replace missing or corrupt system filesBoot the PC and keep tapping F8 right after the beep until you get options, select command prompt only, give it a minute to arrive at the prompt with a flashing cursor then type scanreg.exe /fix then press enter, it will run through a few screens then say registry repaired. Press enter then press ctrl + alt + delete keys together to reboot.When Windows has loaded, click start, all programmes, accessories, system tools, system information, tools then run system file checker and replace any files it asks for from the 98 CD then reboot.
When it has loaded to the desktop, click start, programmes accessories, system tools to run disc clean up, then run disc defragmenter from system toolsDownload, install and run Tune Up 2006 TrialRun Tune Up disc clean up
Run Tune Up registry clean up
Click optimize and improve to run Reg Defrag, the screen will lose colour during the process which can take a few minutes and then needs a reboot
Those will have cleared the drive of obsolete software errors
These are suggestions for making the most of the free trial
After the reboot, click optimize then system optimizer to optimize the computer, select computer with an internet connection from the drop down menu, this also requires a reboot
After the reboot, click optimize then system optimizer to accelerate downloads, select the speed just above your actual connection speed, this requires a reboot.
After the reboot, click optimize then system optimizer to run system advisor
Install the soundcard software, but you could also look for newer drivers from the manufacturer's site