Hey, I was using powerdvd 5.0 without any problems, then decided to install windvd 5.0, so i uninstalled powerdvd and installed windvd, now there's no sound at all, just video. I made sure it wasn't set to mute and the volume on volume control is maxed out. I tried playing mpeg/mpeg2 files with media player 6.4 and it plays without any problems so it must be something to do wtih the dvd software? When i play it on media player, it shows that it's using the "nero audio decoder" could it be that the codecs are conflicting with each other? don't know why nero installs that codec. Anyone know what's going on? Thanks in advance.