Volume control keeps disappearing

Hello All

In Windows Vista Home Premium service pack 1, the volume control keeps
disappearing from taskbar and the checkbox in the taskbar properties box to
restore it is grayed out (along with the network icon box).

I've tried doing this, per MS knowledge base article

delete key:

[-HKEY_CURRENT_USER\Software\Classes\Local
Settings\Software\Microsoft\Windows\CurrentVersion \TrayNotify]

If also tried a reg fix someone posted to fix this.

Either fix works for just one bootup. If I reboot, the icon is gone again.

MS says a work around is to use the volume control in Control Panel. I'd be
happen to add a shortcut to it to my quick launch. But I don't see a volume
control in control panel.

Any suggestions? Thanks.

Regards,,
Anthony Giorgianni

For everyone's benefit, please post back to the group