i have a Studio XPS 435T/9000 with a plds dvd +-rwdh-16aas burner. the drive dosen't register on my hardware, and will not respond when a c.d. is placed into it. (Auto play does not work). i've downloaded several drivers for 64 bit from dell, but it conflicts when extracted. (Says i have a 64 bit system and will not work.) help.