As Tlmck stated, HP themselves only appear to support Windows 2000 and Windows XP on the HP Compaq NX6110 Notebook PC
If by chance you still have Windows XP installed on the machine, it is strongly advised that you first run the Windows 7 Upgrade Advisor
in an effort to ensure your PC is ready for Windows 7 and compatible with Windows 7.
You may also want to utilize the Windows 7 Compatibility Center
to verify compatibility for your sound card directly.
Windows Outreach Team – IT Pro