Hi - check the battery; if the comp works with an adapter then there is your culprit - Amos.
I am trying to help a senior citizen with a computer problem. They have a HP laptop running Windows XP Home with 512MB of RAM. When they power up, the Windows logo appears and chugs for a few seconds then the screen goes black and just stays there. The same thing happens if I try to boot up in Safe mode. No error messages just black screen. Any help would be appreciated.