I have got a Samsung Series 9 900x3c with Ubuntu 12.04 on. After installing Ubuntu Grub would not load completely (only parts of the Menu were showing) every time so I launched the Boot repair indicating the use of an UEFI bios. Now Grub always loads completely but I do not seem to be able to launch Ubuntu directly. Instead I have to select Advanced options for Ubuntu and the newest Kernel Version and then the boot starts. Any ideas? Thanks a lot in advance Johannes