I recently upgraded my system to ubuntu11.04 from 10.10 . Now i am facing the problem that there is no taskbar at the top of the screen and a dock on left hand side of the screen as intended in unity.However if I click on these area they perform intended functions,but I can't see a thing .Any kind of help will be appriciated.Thanks...

How do you know they perform their intended functions if you don't see anything happen?

In addition to my taskbars disappearing (both the one on top that has links to all the programs, and the one on bottom that says which programs I'm running), the aforementioned dock has also disappeared, so I have no way to run any programs unless I have a link to it on my desktop or can run it through the terminal.

Is there any way to get the taskbars back? Since I don't know how to run OpenOffice from the terminal, this has rendered my computer basically useless for anything other than surfing the Web.

Are you the same person under a different account? If you wanted to change your name, it would be a much better idea to send an email to "jeremy" (the administrator). He could change it for you.

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Im having the same problem, does anyone know how to fix this???

Those are panels, not "taskbars".

Try running this from a terminal to get them back:

(the "nohup" command is so that the panels will not disappear once you close the terminal).

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I cant try this because im not able to open terminal, tried ctrl + alt + t and ctrl+ f2 to open a terminal but neither worked.

Alt + F2 opens the run dialog on my computer which is basically a small terminal; And you can execute commands in that. Also you can switch Desktop options at the log in screen. To log out, pres Alt + F2 and paste the following into the text box:

gnome-session-save --force-logout

and press enter. If there are no desktop options at the log in screen, press enter a couple of times and they should show up.
And if you still need the terminal, On my computer I can open this up by pressing Alt + F2 and then entering "gnome-terminal" into the dialog box.

No, I am not the same person as the topic poster, but thanks for the tip. I was just having the same problem.

RE: taskbar issues: I managed to get the tray thing back by enabling the Ubuntu Unity Plugin, but I still have no bottom taskbar. Does anyone know how to change the number of faces on a Desktop Cube without going through the bottom toolbar? Having only two workspaces is annoying.

Yay, thanks! That fixed it for me.

A thanks from me too - why did they loose the task-bars originally?