I am having this same problem. Compaq Evo N610c
Has any one found a solution. I can not boot into my Windows XP only Ubuntu as that is the default It seemed to worked fine until 2 days ago. The last thing I did was to install the KDE desktop. I am not sure if the two have anything to do with each other. But Thats the last thing I did. MY screen is completely blank and I can press the enter button and see that the hard drive is doing something then after a it boots into ubuntu -- grub menu not displayed https://launchpad.net/bugs/25517 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
