Hi. Yesterday I install Ubuntu 13.04 along with Windows 7, but i still having the same problems that with older versions. The major problem is that the battery discharge in about 25 min and the pc seems to fly. I have a Sony Vaio with intel i5 @ 2.40Ghz 4Gb ram and a hybrid video card Intel/ATI (Tarjeta interna: Intel® HD Graphics 3000 Tarjeta externa: AMD Radeon 6470M (512MB). Somebody tell me that the problem was on the drivers of the video card, so i download them from ADM´s webpage and install them, but after the reboot unity dissapear. I try to install Gnome desktop, and send me an error, then i try to uninstall unity and the same error. Now there is nothing when i log in, and Ubuntu don´t allow me to install anything, is there a restore option like in Windows? or what can i do to recover Ubuntu without erase or affect windows´s partition?