I have a Dell 4400. The PC is set up with a primary IDE controller has the h/d on it, and secondary IDE controller has the Cdrw drive. The cdrw is set up on the secondary IDE with a 80 pin cable and the CDRW is set to cable select. I got a new Plextor PX 716A DVD+ - RWdl Drive, and the installed on the secondary IDE. I set the Plextor to cable select, and the cdrw to cable select. I set the plextor to the end of the 80 pin cable, and the cdrw drive middle connector on the 80 pin cable. The drives are being seen by Win XP in the correct order, but the drive will not stay closed. Boots up door stays open, close the door and opens right back up, put in a DVD movie and the disk opens right back up. Anyone had this kind of problem before. Thanks for any help.