i have a dell optiplex that came with out a dvd drive, and this computer replaced my old emachine. i got to lookin, and it would fit, so i took it out, and placed it in the dell. it will read DVD's, (i originally needed it ot load photoshop), and i went to put a dvd movie in it, and the computer would recognize it, but wouldnt play it. it said i needed a decoder, so i downloaded that. then it said there was a problem with the connection between the computer, drive, and decoder. i know this is prolly due to not having any software with the drive to install, but is there a way to fix this?