I'll be on the Internet or in a program and my CD-RW drive starts blinking like it's burning a CD (nothing in it), then my computer will freeze up and reboot itself. Other times it'll do it for a few minutes and the computer will freeze up then it'll just stop and my computer "unfreezes". It just does it randomly and I have no clue what's wrong with it. It's really annoying. I don't know what information you need to know but it's a Compaq Presario with ME. It's about 4 years old. I'm glad I use my other system mainly (only a year old with XP) because this one is driving me crazy. I wouldn't be surprised if I need a new drive, but I'm not investing anything on this computer.