HL-DT-ST DVDRRW GSA-4166B problems

Hi, I have the above mentioned drive and I can not get it to read a dvd.Was in my mothers pc wouldn’t work there so I installed it in mine dual boot both xp and 7 same thing tried both versions of the 1.1 firmware now on 1.2 no difference.Any ideas?Also read something about updating volume in under device manager/ properties/ volumes Looked but didn’t do any good said to have media in when tried but since it wont read dvd doesn’t work.DVD region is set to 1.Thanks in advance