Last night, I installed ubuntu from the alt cd and it worked. I got all the way through the installation. I ejected the cd and let it reboot and the start up screen comes up and the loading bar goes across then nothing. The laptop is still on but the screen is completely blank. I turned it off and went to bed. Today I turn on the laptop it goes through the load up screen then blank. It has been running for about 2 hours with no change. The laptop is a compaq presario with 30G Hard drive and 256M ram. I did a use all drive space install with no other partions. Can someone tell me what I need to do. Thanks.