Upgrade 10.04 -> 12.04, no menus in top panel

[Colin Law]

On 18 March 2013 14:26, Liam Proven <lproven at gmail.com> wrote:
> On 18 March 2013 13:44, Colin Law <clanlaw at googlemail.com> wrote:
>> On 15 March 2013 09:31, Colin Law <clanlaw at googlemail.com> wrote:
>>> I have upgraded a 10.04 machine to 12.04 and all is well apart from
>>> the fact that window menus still appear in the windows rather than in
>>> the top panel.  Can anyone suggest which package I should try
>>> re-installing in order to get this working, or what settings may be
>>> awry?  It is using Unity-2d, the graphics does not support 3d.
>>
>> Any suggestions on this anyone?
>
> I'm not sure - my last PC which only has 2D graphics is too slow for
> Unity to be usable any more, so I switched to Lubuntu.
>
> What graphics chip is it?
>
> I have a distant feeling that this might be normal behaviour, but I've
> not looked at Unity-2D in a couple of years now.

No, it is not a graphics chip issue, it is fine running off the live
CD.  Something has not upgraded or installed properly on the way to
12.04.  There were a couple of error dialogs on the way but
unfortunately they seemed to be using non-existent fonts so the text
was just rectangles, and I had to click the (presumed) ok button.

My thought was to try
sudo apt-get install --reinstall ubuntu-desktop
but I am not sure whether there are any dangers in doing that.  I have
the additional problem that the machine is a relative's and is three
hours drive away so if anything catastrophic happens I am in trouble.

Colin