First I want to apologize if this isn't in the right forum. I'm stumped. I recently upgraded an older AMD 700 Windows 98 to XP. Ok, no problem there. My brother recently bought a new DVD burner for his new gateway, so he gave me his dvd rom. I installed it fine, everything works fine. I put in a dvd and it installs Interactual player, and another dvd installed PC friendly dvd. Well, when I put a dvd in to play the actual movie I get a message saying "cannot find dvd decoder." Then with interactual I get sent to their site where I can buy one for 29 bucks. Is there something I can install for free to get this to work. I've looked at the Gateway Drivers disc and XP, and can't seem to find the problem. Can anybody help? I thought I might try and see if I can burn Windvd from my brother's computer and see if I can try installing that and see if that will help. So whenver I open a dvd in media player, interactual, or pc friendly, it says that a decoder cannot be found. Any help would be great.