[ubuntu] Ubuntu 12.04 and Windows 7 do not boot up

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http://ubuntuforums.org – Hey, I was trying to change my splash screen in ubuntu 12.04. I downloaded and used the super-boot-manager. But when I ran the program with a new splash screen I received a blank screen. So I ran the following script file, fixplymouth-precise script. And when it asked for the resolution I gave 1024x768-24. But my laptop is 1366x768 preferred resolution. In an attempt to change my resolution back to 1266x768 I open and editted the following file: /etc/default/grub and changed the following: GRUB_GFXMODE=1366x768x32 GRUB_GFXPAYLOAD_LINUX=1366x768x32 GRUB_CMDLINE_LINUX_DEFAULT="...1 (Hardware)