Problem as stated in the title of my post. I'm running XP Pro.
If I go to control panel > sounds and audio devices I see that the "place volume icon in the task bar" is checked as it should be. To get it back I have to uncheck > apply > recheck > apply but as soon as I restart I lost the icon again so its a bit of a pain.
I have used Driver Agent to check my Sound Drivers are OK and they are so I'm at a loss as to what this could be.
[Magic ISO error. I used to have this softare but uninstalled it]. Maybe check msconfig [start up] that it is still not running at start up.if so untick it. Have you left clicked the arrow to expand the start up icons on the taskbar.Or is the arrow missing.