*** This bug is a duplicate of bug 63588 *** The problem is with splash, disabling this in the grub boot should fix your problem. While the initial report does mention ATI the problem occurs with both Nvidia and Ati proprietary drivers. There is also an option of adding "vga=791" to /boot/grub/menu.lst but it has not worked for everyone.
The fact that you can go back to F7 afterwards confirms for me that this is indeed a duplicate so I am going to mark it as such. ** This bug has been marked a duplicate of bug 63588 banshee can play certain files, but won't add them to library -- Switch tty, shutdown, reboot cause colorful screen with Nvidia proprietary driver https://launchpad.net/bugs/85451 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
