Yesterday I reboot the system to enter my Windows partition and use a program. When I logged back into my Ubuntu account I got a black screen (in guest session everything was fine).
I made some research and, using the nomodeset, I managed to enter my account avoiding getting a black screen afterwards. So now I can access my Ubuntu account, but the side launcher is not shown, as well as any other bars: when I open the terminal (only working through right click on the desktop) or a webpage the top bar is not shown as well, so I cannot minimize/close windows. The top desktop bar is also gone, so I cannot control volume or shut down via graphic mode.
Trying to get Unity back to its natural state I followed intructions from this link (answer with 29 votes), and this other link (answers 412, 145 and 44). With the the last one I managed to enter the CompizConfig Settings Manager, but in my case the Ubuntu Unity Plugin doesn't have a box do enable/disbale, contrary to the image shown in that answer (if I enter the Unity Plugin it seems to be enabled, though).
I also checked that no nVidia drivers were accidentaly installed as I read in some other links, as I'm not running on nVidia graphics.
The last change I remember doing on the system before the failure was trying to install Wine so I could run Photoshop CS5. For some reason it didn't manage to be installed, and if I acceed my Ubuntu account a message pops-up, something related to mscorefront.
The last option I have is to copy all my documents to a hard-drive and re-install Ubuntu, but without the launcher and my poor skills it could be a nightmare.
I hope you can give me a hint on how to solve this issue. Again, the problem is only when I enter my Ubuntu account; on guest session or in the log in panel everything looks fine.
