OK, I've already realized that I need an AC3 codec for my Divx Player because of the whole no audio issue. The main problem i'm having is actually the installation process, as soon as I double click the setup program, it shows the green bar loading up. when the green bar almost reaches the end... I get this message saying that the installation failed and that I should clean out all my temporary files from my internet explorer. The weird thing is... I don't even use my explorer browser. I use Mozilla Firefox. Even when I do clean out both Internet Explorer and Firefox browser's temporary files, it still says the same thing. that it failed again and that I should clean out all my temporary files from my internet explorer. what am I doing wrong? should I uninstall divx and find a better player or should I find the ac3 codec? and more importantly which is the correct decoder to choose from. I'm trying to install this on a gateway netbook, windows vista? can anyone help?