[Bug 994778] Re: after upgrading to 12.04, unable to use any application

[Smarteralec]

Is it possible your system has booted into a read-only file-system mode?  (I've already reported that bug, and Mozilla won't respond either, presumably  since it can't write any session or cache files )
Is it consistent upon multiple reboots? (mine is only intermittent, usually it boots ok) 
Are you able to open a terminal window via ctrl-alt-T?  In a terminal, do you get error msgs about locked files or other access problems? (For example, running 'sudo apt-get update?
What do you get with
Have you run 'sudo apt-get install -f" ? (fix packages)
What file permissions on your home dir do see when you run 'ls -l /home' ?

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https://bugs.launchpad.net/bugs/994778

Title:
  after upgrading to 12.04, unable to use any application

Status in “apt” package in Ubuntu:
  New

Bug description:
  Just upgraded from 11.11 to 12.04
  I'm using VirtualBox 4.1.14.r77440 + guest additions 4.1.14 on Windows/7
  [x] 3D acceleration checked (not 2D)

  Since i've upgraded, i no longer can launch nor use any application in Ubunto
  Unity bar appears first at the left but when ever i choose to open an applicationn (say Mozilla for example), nothing *seems* to happend
  In fact appears the window when i shoud type an tool name to launch (see capture1.png)
  I'm not able to type any text there ...
  If i want to type an aplication text, i have to push the Window Key on my keyboard ...
  and ... may be the app opens but cannot be used
  As you can see on capture1.png, firefox is openned but cannot be used.

  Other problems arround:
  - network connects and disconnects every 5 seconds (see capture1.png)
  - install failed with colord (workaround found and applied in bug Bug #989921) but this doesn't seem to correct this bug

  At this time, upgraded ubuntu CANNOT be used in any way (except
  recoveny console).

  This makes me very hard to get more logs but ask me and i will try to
  get copy of theses files.

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