When I start my computer, it goes to the compaq screen like usual, but then it goes to a black screen with a blinking underscore in the upper left corner. I've tried holding down ctrl to go to safe mode but it just goes to the same black screen. I've also tried putting in the windows 98 start-up disk and running scandisk to fix any problems. It fixed some problems but didn't affect mine. Does anyone know how to fix it? I have a compaq presario desktop computer with windows 98 second edition.