Did you try this,start>control panel>sounds and audio devices then check the box place volume icon in the task bar?
I have a new Vista HP Laptop, and all was perfectly fine until today, when I noticed that the sound icon (for volume control and stuff), was missing from the taskbar. I read up on this and followed the instructions to get it back - Go to Taskbar and Start Menu Properties, and the Notification Area Tab. In the System Icons section, I have clock, Volume, Network, Power. Only Clock is checked, all the others are unchecked, and greyed out. I am unable to check the volume here.
Dones anyone know how to fix this? I have not installed anything on this machine in weeks, not even updates, and all was fine yesterday. Now this!
All help would be appreciated.