I have the same issue, (more or less) loaded all software supplied with the unit, (Kills the monitor, makes it into 'snow' have to hard boot after) went to this site to download the 1/2 gig 'Drive Navi 1.4.0' won't load gives an error msg "this software may only be installed with a DV-ROM" so here are all the variations I tried, from a cd, dvd-rom, dvd-rw, network file, flash drive, native drive -- nothing. This is on an XP machine with 'scuzy' drives, so I tried the same variations on another XP box with RAID drives, So I tried it on a vista box (ultimate with media center as well) I tried it with the provided software in all the same machines listed as well, result from all of it? .....nothing. if it didn't crash the graphics, it just froze, sometimes recognizing the blue-ray disc name sometimes not, all times it could not recognize the format. Call this sites tech support, had me download a 'toshiba driver' to recognize the blueray format, driver would not load on either XP box, said I did not need it for the vista machine, media player would not play, media center would not play, nothing is working about this unit. If this forum can not assist, its going back in the box and back to the store, please help this last requested effort, thank you