When I boot my computer with UBUNTU live disk, I am able to reach at that stage at which it gives option like running memory test , installing it, checking disk for errors etc. but after selcting the option of installing it, I am not able to understand what to do. It shows dos screen with a cursor which blinks and nothing is written on the screen except some eight digit numeral and alphabets combinations given at the bottom . Help needed. the same thing happened with Gentoo installation from a CD that I wasn't able to go beyond the screen which prompted to select the kernel.