I have a slightly older Inspiron 2500 laptop that i use for surfing. I have WinXP on it and I am having intermittent booting problems. I turn on the machine and I get the dell screen and then it goes on to the windows screen and then i will get the music and my desktop appears and it boots up - everything ok it seems. Well the next day I boot up, get the dell screen, then the windows screen that is says it is booting up. Then my screen turns black but I hear the music that alerts me that it is booted up. And this happens 3 or 4 times out of 10 of booting up. My screen is on because i the backlight is shining but it is just a black screen - so I restart and sometimes it will do the same thing and other times it will just boot up fine. What could be the cause of this? What should I diagnose?