I have a hp media center pc 873n w/windows XP it's about 3 years old. I will try to explain this the best I can. When I put a CD media disk ( photos or music) into either my CD or CD/DVD drive, my drives do not start automatically like they used too. I have to go to "My Computer" and click on the drive to find what is on the CD. I have gone in and right clicked on each driver into Properties "Auto Play" and tried different settings with no success. I have also noticed that at time while clicking from one program to another my computer attempts to recognize the CD. Any suggestions would be greatly appreciated.