Hi. I am having problems with my CD-Writer not opening after log-in. I have determined that it is not the power or the tray mechanism as it opens and closes fine during boot up. Also, it reads and writes great. I am running XP and have tried a couple of writers and get the same problem. I have uninstalled the drivers and the Windows XP automatically installs the drivers it chooses when I re-boot. I can't think of any other solutions.