My sound different in windows XP after reinstall

Try this:
Right click “my computer”
Select “properties”
Click “hardware” tab, select “device manager”
Expand “sound Video and Game controllers”. Your sound card should be listed.
If you see it and it has a ? or yellow ! mark, then the drivers are not installed. Simply grab you drivers disk and install them.
If you see a red circle with a line going through it, this means its disabled.
Right click on the item and click enable.
also when you click on speaker net to clock make sure you on playback not record. Record is only if you use headphone/ mic configuration.