Hi! I am trying to turn on my old laptop, a compaq Altec Lansing. I believe the software it is running is Windows 7. Anyhow, after pressing the power button, it immediately displays a black screen with a solid, not blinking, white cursor at the top left corner of the screen. I have pressed the f buttons like 2,8, and 10, but nothing triggers any activity. Please help, I don't know what is wrong with it, let alone how to fix it.... Thanks in advance!!