Network Manager gone
 

So I just installed Ubuntu 10.04 as my only OS on my Laptop. It was working just fine until i updated it. Now the network manager is not in the system notification tray. I don't know how else to connect through my wifi card. When i go to the repository it says that the program is still installed but i can't figure out how to access it. Has anybody else had this problem or know how to fix it?

Have you tried just re-installing NetworkManager?

There is a way to connect to a wireless network via the command line. It's a bit of a process, though...

Thanks. I hadnt considered that. I will look into it.

Is the icon really gone or is the space used up by some invisible icon? i had the later and i could use it without a problem.

you might want to kill nm-applet and start it again. maybe it also just got removed from your tray, try adding it again

For others with this problem (using MrCode's idea) i found this tut.
http://ubuntuforums.org/showthread.php?t=571188

Thanks x29a. Do you know how i would go about adding it to the tray? It would be convenient to have.

This seems to be a common problem in Ubuntu 10.04. I keep having same problem. Whenever it happens I comment out all the lines in /etc/network/interfaces and restart. When I log back in the network manager icon is there and when I go un-comment out all the lines in /etc/network/interfaces it doesn't complain. I hope Ubuntu fixes this in an update or something.

it may have dropped out of the autostart list, try manually running it with nm-applet from terminal/Alt+F2