Well my friend just formated his PC and the following problem came up: when he is trying to playback a DVD, he hears only the sound but sees no picture, nothing at all. This is happening with every DVD he uses, with every program (PowerDVD, WinDVD, Media Player) and cannot be fixed! Well we tried everything: install ASPI drivers, update firmware, install video drivers, re-format and re-install windows, and changing DVD's position (from master to slave etc). The crazy thing is not that the sound is OK but that the drive can read any CD or DVD without any problem. It just can't play movies! The drive is a Pioneer 120 and it was working fine before the format! Anyone with the same problem please help, because I am getting crazy! PS: I moved the drive at my PC and it works OK, my drive at his PC doesn't work, so give me suggestions about drivers, programs etc, no hardware.