I don't see anything obvious. You can try installing the
latest Realtek HDA Driver.
Also try a clean boot.
Booting clean in Windows Vista / 7:
1. Click Start --> Run --> Type MSCONFIG --> Click OK
2. On the General tab, choose Selective Startup
3. Uncheck Load Startup Items
4. Select the Services tab
5. Check Hide all Microsoft services
6. Click Disable all
7. Click on OK
8. Click Restart.
9. After reboot, run the game to see if it works.
After performing the necessary steps, restore your system by doing the following:
1. Click Start --> Run --> Type MSCONFIG--> Click OK
2. On the General tab, choose Normal Startup
3. Click Ok
4. Click Yes, when asked to restart your computer
Based on
Will's post