Notification Icons in Vista's System Task bar are gone (Fix)

You have tried to:

1. Right-Click on bottom bar
2. Properties > Notification Icons
3. BUT couldn't re-check them because they were greyed out?

Then try this link, it has nicely detailed instructions BUT they are recommended for advanced users only because they require editing of the registry, although if your a novice and are looking at becoming an IT student like I, then don't worry about what I said, back up all your important data and have a plat around and see how badly you can screw up Vista, its a good way to learn, and Oh, please don't sue, if you played and lost. :)

http://www.howtogeek.com/howto/windows-vista/fix-for-when-clock-volume-power-or-network-icons-are-missing-and-grayed-out-in-windows-vista/