I have recently upgraded to Win7 pro 64Bit. I downloaded most of my software vie my ODD. it stopped working and did not appear as D drive. I have replaced it with a Samsung SH224DB. same problem, the drive is present in bios screen. It will not auto run I have tried downloading a new driver as the win7 one is dated 2006. Samsung only appear to have firmware to download. any advice would be appreciated. It is an strange problem to me there must be hundreds of millions of ODDs in use every day how is it so easy to have a problem with one and so hard to solve it??